Question

Find the value of x. Round to the nearest tenth.
PLEASE HELP ME!!

Answer 1

x = 4.1 cm

Explanation:

Use the Pythagorean theorem:

`leg^2+leg^2=hypotenuse^2`

We have

`leg=x,\ leg=15.6cm:2=7.8cm,\ hypotenuse=8.8cm`

Substitute:

`x^2+7.8^2=8.8^2`

`x^2+60.84=77.44` subtract 60.84 from both sides

`x^2=16.6\to x=√(16.6)\\\\x\approx4.1\ cm`