suppose Solid A and Solid B are similar. Solid A has an edge length of 18 cm, and the corresponding edge in Solid B is 12 cm. If the surface area of Solid A is 1836 cm2, what is the surface area of Solid B in square centimeters?
The scale factor from B to A is (12/18) = (2/3)
So...the surface area of B = the surface area of A * the scale factor of B to A squared
So we have
1836 * (2/3)^2 =
1836 * (4/9) =
816 cm^2