165k views
4 votes
Find the value of x. Round to the nearest tenth.
PLEASE HELP ME!!

Find the value of x. Round to the nearest tenth. PLEASE HELP ME!!-example-1
User Melton
by
7.1k points

1 Answer

2 votes

Answer:

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

User Pyko
by
6.3k points