Question

Find the length of side AB. Round your answer to the nearest tenth:

Answer 1

Answer:

Step-by-step explanation:

You are going to be using the Cos function.

<B = 50 degrees

BC = 2

AB is what you want

Cos(50) = adjacent /  hypotenuse

Cos(50) = 2/hypotenuse                 Multiply both sides by the hypotenuse.

hypotenuse*Cos(50) = 2                 Divide by cos(50)

hypotenuse = 2 / cos(50)                Cos(50) on the left cancels. Divide.

hypotenuse = 2 / .6428

hypotenuse = 3.111 = 3.1