Question

Find the value of x, which makes the area of this triangle equal 72.
Choose one answer.
a. x=4.6875
b. x=9.375
c. x=6
d. x=10.5

Answer 1

(1/2)(2x - 3)(8) = 72 is your base equation

Then,
(4)(2x - 3) = 72 -> 2x - 3 = 18 -> 2x = 21

x = 10.5

Answer 2

Oh, BTW, that first equation is from (1/2)(h)(b) = A

Answer 3

thanks! :) I understand!