If the area of the circle inscribed in triangle ABC is 16π, what is the area of triangle ABC? (A) 80 (B) 81 (C) 82 (D) 83 (E) 84 …

## Problem of the Day January 15th 2018

Triangle A has sides of length 10, 13, and 13. Triangle B has sides of length 13, 13, and 24. What is the ratio of the area of triangle A to triangle B? (A) 1 : 1 (B) 24 : 13 (C) 2 : 1 (D) …

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## Challenge Problem 2 2016

(Note: Not drawn to scale) In triangle ABC, CE is perpendicular to AB and BD is perpendicular to to AC. If EC = 5 and BD = 3, what is the ratio of AC to AB? (A) 3 : 5 (B) 3 : 4 …

## Scaling Circles

The area of circle is , and the area of circle is . What is ratio of the circumference of circle to the circumference of circle . (A) 2.5 : 1 (B) 5 : 2 (C) 5 : 4 (D) 25 : 16 …