User:Aoum

User Page • Discussion • Blog • • Competitions • Contributions

👋 Welcome

Welcome to my AoPS user page! I'm a passionate math competition participant who contributes to the AoPS Wiki and constantly works to improve in contests.

Here you'll find resources, strategies, books, videos, and more to help you prepare for: AMC 8, AMC 10, AMC 12, AIME, MATHCOUNTS, F=ma, NSB, USACO, and ACSL.

Be sure to bookmark this page for frequent updates and valuable content!

Problem of the Week

2004 AMC 10A, Problem 25

Three mutually tangent spheres of radius rest on a horizontal plane. A sphere of radius rests on them. What is the distance from the plane to the top of the larger sphere?

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📊 Live AoPS Wiki Site Statistics

🗓️ Date: Friday, June 20, 2025
⏰ Time (GMT): 17:21

✏️ Total Edits: 254,984
📚 Total Articles: 10,659
🖼️ Files Uploaded: 3,534
👤 Registered Users: 270,331
📝 Recent Changes: View updates here

📚 Aoum's Contest Resource Hub
🏅 AMC 8 • 🎯 AMC 10 • 📏 AMC 12 • 🧠 AIME • 🧮 MATHCOUNTS • 🔬 NSB • ⚙️ F=ma • 💻 USACO • 📡 ACSL

🌐 External Resources

• 📖 Omega Learn – Free books, videos, and classes by Sohil Rathi.
• 📺 Sohil Rathi’s YouTube Channel – AMC, AIME, and F=ma prep videos.
• ✍️ Pi in the Sky Blog – My posts on interesting math problems and ideas.

📘 Free Books

• Mastering AMC 8 – Combinatorics, Algebra, Number Theory, Geometry.
• Mastering AMC 10/12 – In progress; updated often.
• The Book of Formulas and Strategies – 140+ pages of formulas and theorems.

🎓 Free Classes

• AMC 8 Fundamentals
• AMC 8 Advanced / MATHCOUNTS
• AMC 10/12 Concepts
• MOEMS Overview

▶️ Popular Videos

• AMC 8 Class 1 – Permutations & Combinations
• AMC 8 Class 3 – Probability & Geometry
• Class 2 – PIE & Casework
• Math Contests Overview
• AMC 10/12 – 6-Step AIME Prep

📚 AoPS Book Recommendations

Introductory:

• Prealgebra
• Introduction to Algebra
• Introduction to Counting & Probability
• Introduction to Geometry
• Introduction to Number Theory

Intermediate:

• Intermediate Algebra
• Intermediate Counting & Probability
• Precalculus
• Calculus

Competition Prep:

• AoPS Volume 1
• AoPS Volume 2
• Competition Math for Middle School

🏆 My Competition History

• AMC 8
  • 2025

• AMC 10
  • 2024

• MATHCOUNTS
  • 2024
    • Chapter
  • 2025
    • Chapter

• TCSAAL
  • 2023-2024
    • Regional
    • State
  • 2024-2025
    • Regional
    • State

• Annual HHCS Math Contest
  • 11th Annual: 2019
  • 12th Annual: 2024
  • 13th Annual: 2025

How to Prepare for...

• AMC 8

A middle school math competition focused on basic problem-solving skills. Preparation involves practicing with past problems, strengthening number sense, and reviewing fundamental math topics like algebra and geometry.

• AMC 10

A high school math competition covering algebra, geometry, number theory, and combinatorics. Prepare by solving past AMC 10 problems, mastering important mathematical concepts, and developing efficient problem-solving strategies.

• AMC 12

A more challenging version of the AMC 10, aimed at high school students. It tests advanced topics such as trigonometry, calculus, and combinatorics. Prepare by diving deeper into high-level math concepts and practicing with difficult problems.

• AIME

A highly challenging math competition that follows the AMC 10/12. It focuses on problem-solving with a higher level of difficulty. Prepare by solving past AIME problems, and mastering advanced topics like number theory and combinatorics.

• MATHCOUNTS

A math competition for middle school students that tests algebra, geometry, and problem-solving skills. To excel, practice mental math, solve problems quickly, and review common topics such as sequences, patterns, and combinatorics.

• MOEMS

The Math Olympiads for Elementary and Middle Schools (MOEMS) competition focuses on reasoning and problem-solving. Preparation involves sharpening your ability to think critically and solve creative problems across a range of mathematical topics.

• NSB

The National Science Bowl (NSB) is a science and math competition that requires strong knowledge in both fields. While not exclusively math-focused, preparation should include reviewing scientific principles, math-related topics, and interdisciplinary knowledge.

• F=ma

The F=ma (Force Mass Acceleration) competition tests students on physics and math problem-solving. It focuses on mechanics and physics-related math. To prepare, strengthen your understanding of physics principles, practice solving physics problems, and apply mathematical concepts in physics contexts.

• ACSL

The American Computer Science League (ACSL) is a competition that challenges students in computer science and programming. It covers topics such as algorithms, data structures, and programming languages. Prepare by studying coding concepts, practicing algorithm design, and solving past ACSL problems.

• USACO

The USA Computing Olympiad (USACO) is a programming competition that tests students on algorithmic problem-solving and computer science concepts. It features problems in areas such as sorting, searching, dynamic programming, and graph theory. Prepare by mastering programming languages (especially C++, Java, or Python), practicing with past USACO problems, and learning key algorithms and data structures.

🧠 My AoPS Contributions

• 13:09, 20 June 2025 (diff | hist) . . (+354)‎ . . AoPS Wiki:Policy ‎ (current)
• 12:18, 20 June 2025 (diff | hist) . . (+15)‎ . . N User talk:Win79spot ‎ (Propose for deletion) (current)
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• 12:18, 20 June 2025 (diff | hist) . . (+17)‎ . . User:Vantaisaigon ‎ (Propose for deletion) (current)
• 12:17, 20 June 2025 (diff | hist) . . (+15)‎ . . N User talk:Rongho99pro1 ‎ (Propose for deletion) (current)
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• 12:17, 20 June 2025 (diff | hist) . . (+15)‎ . . N User talk:Excel-to-vcf-converter ‎ (Propose for deletion) (current)
• 12:17, 20 June 2025 (diff | hist) . . (+17)‎ . . User:Excel-to-vcf-converter ‎ (Propose for deletion) (current)
• 12:17, 20 June 2025 (diff | hist) . . (+15)‎ . . N User talk:Z8betbet ‎ (Propose for deletion) (current)
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• 12:15, 20 June 2025 (diff | hist) . . (+15)‎ . . N User talk:789wintmcom ‎ (Propose for deletion) (current)
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• 12:14, 20 June 2025 (diff | hist) . . (+17)‎ . . User talk:Mm99us ‎ (Propose for deletion) (current)
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• 12:14, 20 June 2025 (diff | hist) . . (+17)‎ . . User:Kiprpropertyru1 ‎ (Propose for deletion) (current)
• 12:13, 20 June 2025 (diff | hist) . . (+17)‎ . . User:Riodavila44 ‎ (Propose for deletion) (current)
• 12:12, 20 June 2025 (diff | hist) . . (+1,071)‎ . . Pythagorean Theorem ‎ (current)
• 11:45, 20 June 2025 (diff | hist) . . (-151)‎ . . 2023 AMC 10A Problems/Problem 18 ‎ (current)
• 20:15, 19 June 2025 (diff | hist) . . (+3,833)‎ . . N Erdős–Szekeres Theorem ‎ (Created page with "== Erdős–Szekeres Theorem == The '''Erdős–Szekeres Theorem''' is a classic result in '''combinatorics''' that guarantees the existence of a long monotonic subsequence i...") (current)
• 20:14, 19 June 2025 (diff | hist) . . (+4,373)‎ . . N Ramsey's Theorem ‎ (Created page with "== Ramsey's Theorem == '''Ramsey's Theorem''' is a fundamental result in '''combinatorics''' and '''graph theory''' that formalizes the idea that complete disorder is impossi...") (current)
• 20:13, 19 June 2025 (diff | hist) . . (-4)‎ . . Template:Asy image ‎ (current)
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• 12:12, 19 June 2025 (diff | hist) . . (+2,296)‎ . . Pythagorean Theorem ‎ (Edited Proof 4 and Added Proof 5 (Linear Algebra / Inner Product Space))
• 11:27, 19 June 2025 (diff | hist) . . (+17)‎ . . User:Tobet88team ‎ (Propose for deletion) (current)
• 11:17, 19 June 2025 (diff | hist) . . (+17)‎ . . User:Winge1 ‎ (Propose for deletion) (current)
• 11:16, 19 June 2025 (diff | hist) . . (+17)‎ . . User:Lu388top ‎ (Propose for deletion) (current)
• 11:14, 19 June 2025 (diff | hist) . . (+17)‎ . . User:D79betbet ‎ (Propose for deletion) (current)
• 11:13, 19 June 2025 (diff | hist) . . (+17)‎ . . User:Ho88eucom ‎ (Propose for deletion) (current)
• 11:11, 19 June 2025 (diff | hist) . . (+17)‎ . . User:Shbetbfood ‎ (Propose for deletion) (current)
• 11:10, 19 June 2025 (diff | hist) . . (+17)‎ . . User:Net88is ‎ (Propose for deletion) (current)
• 11:09, 19 June 2025 (diff | hist) . . (+17)‎ . . User:Nhacaimanclub1 ‎ (Propose for deletion) (current)
• 11:08, 19 June 2025 (diff | hist) . . (+17)‎ . . User:Khin789cv ‎ (Propose for deletion) (current)
• 11:05, 19 June 2025 (diff | hist) . . (+17)‎ . . User:Eu88one ‎ (Propose for deletion) (current)
• 11:01, 19 June 2025 (diff | hist) . . (-10)‎ . . User:Temperal/The Problem Solver's Resource Proofs ‎ (current)

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📄 Copyright

Copyright Disclaimer: None of the content on Aoum's AoPS Wiki pages may be used to create or contribute to other AoPS Wiki pages without prior permission. All rights to the content on these pages are reserved by the original author. Unauthorized copying, redistribution, or modification of the content is strictly prohibited. The following activities are allowed under fair use: incrementing the user count by one, recording your AoPS Wiki username on the visitor count log, and utilizing the discussion page.