Question

The surface area of a triangle pyramid is 1,936mm2. If the dimensions are multiplied by 1/4 what will be the new surface area?

Answer 1

The new surface area will be
`121\ mm^(2)`

Explanation:

we know that

If two figures are similar, then the ratio of its surface areas is equal to the scale factor squared

In this problem

The scale factor is
`(1)/(4)`

so

Multiply the scale factor squared by the original surface area to obtain the new surface area

`((1)/(4))^(2)*1,936=121\ mm^(2)`