Question

Find the unknown side of the triangle below (round to the nearest tenth).

A. 20.5cm
B.5.4cm
C. 16cm
D. 210.5cm

Answer 1

D, I think it’s D if it’s wrong I’m sorry to be honest I tried.

Answer 2

A. 20.5

Explanation:

We can use the Pythagorean theorem to solve this equation for the missing side length, X.

a^2 + b^2 = c^2

We have a and b, we just need c, the hypotenuse.

14^2 + 15^2 = c^2

196 + 225 = c^2

421 = c^2

Now, we will square both sides:

The answer is about 20.5