Lesson: Similarity of Solids Mathematics • 8th Grade

In this lesson, we will learn how to identify similar solids and use similarity to find their dimensions, areas, and volumes.

Lesson Video

Q1:

Given that these two triangular prisms are similar, find the value of .

Q2:

The figure shows two cubes. If the area of the smaller one is 143, and the sides are in the ratio , what is the surface area of the larger cube?

Q3:

If the pair of triangular prisms are similar, and the surface area of the smaller one is 198 yd², find the surface area of the larger one.