Question
a pyramid has a height of 5 inches and a surface area of 90 inches squared. A similar pyramid has a height of 10 inches what is it's surface area?
Answers
Reiny
the surface area of similar solids is proportional to the square of their corresponding sides
Area / 90 = 10^2/5^2 = 100/25 = 4
Area = 90(4) = 360 inches^2
Area / 90 = 10^2/5^2 = 100/25 = 4
Area = 90(4) = 360 inches^2