There is a triangle shaped pyramid with sides 6 cm base 8 cm and height 7cm. If I enlarge it using scale ratio of 1.2. What is the new perimeter and area of the new triangle pyramid? Please help. Thank you

Answer 1

I assume you can find the perimeter and area of the original pyramid.

if the sides double, so does the perimeter.

But the area, since it is the product of two sides, grows by a factor of 2^2, so it is 4 times as big.