Question

Help please? I don't understand..!

Answer 1

slope height = 12^2 + 5^2 = X^2
144 + 25 = x^2
169 = x^2
X = sqrt(169) = 13
slope height = 13 cm


area of 1 side = 1/2 x 13 x 10 = 65 cm^2
area of 4 sides = 65 *4 = 260 cm^2

area of sides & bottom:
sides = 260
bottom = 10^2 = 100
260 +100 = 360 cm^2