### Home > A2C > Chapter 2 > Lesson 2.1.8 > Problem 2-113

2-113.

Start by finding the length of the base of the triangle.

Use the tangent ratio to find the measure of angle *A*.

*m*∠A ≈ 28.07

Use the Pythagorean Theorem to find the length of the hypotenuse.

Perimeter = 40 cm