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geometry senior
Problem
Nondegenerate has integer side lengths, is an angle bisector, , and . What is the smallest possible value of the perimeter?
(A)
(B)
(C)
(D)
Solution
By the Angle Bisector Theorem, we know that . If we use the lowest possible integer values for and (the lengths of and , respectively), then , contradicting the Triangle Inequality. If we use the next lowest values ( and ), the Triangle Inequality is satisfied. Therefore, our answer is , or choice .
Final answer
B