2014 AMC 8 Problems/Problem 9
Problem
In , is a point on side such that and measures . What is the degree measure of ?
Solution
BD = DC, so angle DBC = angle DCB = 70. Then CDB = 40. Since angle ADB and BDC are supplementary, ADB = 180 - 40 = \boxed{140}.
See Also
2014 AMC 8 (Problems • Answer Key • Resources) | ||
Preceded by Problem 8 |
Followed by Problem 10 | |
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