Question

if the area of a triangle is 84 in2 what is the value of x
A. 4.2 in
B. 168 in
C. 6 in
D. 24

Answer 1

Im 80% sure your answer is 24. hope i helped!

Answer 2

Answer: D. x= 24 in

Step-by-step explanation:

Given:The area of the triangle = $84\ in^2$

In the given picture, it can be seen that the height of the triangle = 7 inches

Also,  the base of the triangle = x

We know that the area of the triangle is given by :-

$\text{Area}=\frac{1}{2}*base*height\\\\\Rightarrow\ 84=\frac{1}{2}*x*7\\\\\Rightarrow\ x=\frac{84\times2}{7}\\\\\Rightarrow\ x=24$

Hence, the value of x=24 in.