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1970 AHSME Problems/Problem 29
It is now between 10:00 and 11:00 o'clock, and six minutes from now, the minute hand of a watch will be exactly

589 bytes (80 words) - 00:32, 13 January 2022
1952 AHSME Problems/Problem 49
...frac{2\sqrt{3}}{\sqrt{7}}.</math> <math>A</math> is vertically above <math>O</math> by <math>2\sqrt{3}</math> units. The scale factor is thus <math>\fra

7 KB (1,136 words) - 10:01, 23 December 2023
1952 AHSME Problems/Problem 29
...tersection of <math>CH</math> and <math>AB</math> be <math>N</math>, <math>O</math> be the center of the circle, <math>ON = a</math> and <math>CN = x</m

1 KB (191 words) - 13:20, 15 January 2018
1970 AHSME Problems
It is now between <math>10:00</math> and <math>11:00</math> o'clock, and six minutes from now, the minute hand of the

15 KB (2,366 words) - 07:52, 26 December 2023
1988 AHSME Problems
...CD</math>, and <math>BC</math> is tangent to the circle with center <math>O</math> and diameter <math>AD</math>. pair O=origin, A=(-1/sqrt(2),1/sqrt(2)), B=(-1/sqrt(2),-1), C=(1/sqrt(2),-1), D=(1

17 KB (2,535 words) - 13:45, 19 February 2020
1986 AHSME Problems
respectively. Let <math>O</math> be the center of the pentagon. If <math>OP = 1</math>, then <math>AO pair O=origin, A=2*dir(90), B=2*dir(18), C=2*dir(306), D=2*dir(234), E=2*dir(162),

17 KB (2,512 words) - 18:30, 12 October 2023
1958 AHSME Problems/Problem 21
...math> \overline{DE}</math> are equal chords of a circle with center <math> O</math>. Arc <math> AB</math> is a quarter-circle. Then the ratio of the are MP("O",(0,0),N);MP("C",(-10,0),W);MP("D",(10,0),E);;MP("E",(0,10),N);

1 KB (166 words) - 01:06, 1 January 2024
1958 AHSME Problems/Problem 42
In a circle with center <math> O</math>, chord <math> \overline{AB}</math> equals chord <math> \overline{AC}

1 KB (195 words) - 11:01, 29 June 2024
1958 AHSME Problems/Problem 48
Diameter <math> \overline{AB}</math> of a circle with center <math> O</math> is <math> 10</math> units. <math> C</math> is a point <math> 4</math

2 KB (332 words) - 00:49, 1 January 2024
1982 AHSME Problems
...M=intersectionpoint(A--B, O--O+40*dir(180)), N=intersectionpoint(A--C, O--O+40*dir(0)); draw(B--M--O--B--C--O--N--C^^N--A--M);

17 KB (2,500 words) - 19:05, 11 September 2023
1979 AHSME Problems
pair A=(-2,0),B,C=(-1,0),D=(1,0),EE,O=(0,0); draw(arc(O,1, 0, 180));

17 KB (2,664 words) - 01:34, 19 March 2022
2001 IMO Problems
...\triangle ABC</math> issuing from the vertex <math>A</math>, and let <math>O</math> be the [[circumcenter]] of triangle <math>\triangle ABC</math>. Assu

2 KB (343 words) - 21:52, 15 April 2021
1977 AHSME Problems
& & & & & C & O & C & & & & &\\ & & & & C & O & N & O & C & & & &\\

15 KB (2,412 words) - 05:09, 27 November 2020
1976 AHSME Problems
O=(0,0), c1=circle(O, r1);

17 KB (2,835 words) - 14:36, 8 September 2021
1975 AHSME Problems
...math>BC</math>; and <math>AN</math> and <math>CM</math> intersect at <math>O</math>. The ratio of the area of <math>AOCD</math> to the area of <math>ABC label("O", (1.2, .8));

16 KB (2,512 words) - 04:48, 27 November 2021
2007 iTest Problems/Problem 19
\textbf{(O) }\dfrac32\qquad

3 KB (397 words) - 01:18, 29 October 2023
2007 iTest Problems/Problem 18
\text{(O) It could be } 4 \text{ or } -4 \qquad

2 KB (393 words) - 17:01, 10 June 2018
1969 IMO Problems/Problem 4
...t angle triangle <math>\triangle ABC</math> centered at the midpoint <math>O</math> of its hypotenuse <math>c = AB</math>. Let <math>R, S, T</math> be t

5 KB (904 words) - 13:42, 29 January 2021
2007 iTest Problems/Problem 17
\text{(O) }\frac{5}{6}\qquad

2 KB (266 words) - 21:30, 4 February 2023
2007 iTest Problems/Problem 16
\text{(O) }520\qquad

3 KB (420 words) - 20:28, 17 June 2018

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