Answer:
x = 40
Step-by-step explanation:
Using similarity theorem, we have the following:
Solve for x
Cross multiply
Subtract 24x from each side
Divide both sides by -15
40 = x
x = 40
Equivalent ratios: 12:14 18:21 24:28
You need to find the surface area of the base (the square) then the surface area of all the sides (the triangle) and add the value of all of the sides together. Your answer must be squared.