Question

3.

Find the value of x. If necessary, round to the nearest tenth.


A. 6.9 in.

B. 11.7 in.

C. 13.7 in.

D. 9.7 in.

Answer 1

D. 9.7 in.

Explanation:

the picture in the attached figure

we know that

area of the triangle is equal to

in this problem

A=47 in²

b=x

h=x

so

therefore

the answer is

x=9.7 in