Surface area = area of 2 triangular sides + area of the roof + area of the base.
= 2 * 1/2 * 6 * 4 + 2 * 5*7 + 6 * 7
= 24 + 70 + 42
= 136 units^2
The pieces shown are like all of 8 slices of a pizza.
the area of cirlce = area of the rectangle formed by rearranging the pizza slices.
= (pi*r)*r
The anwser is 5x-3 because you remove the parentheses and pair like terms
