Lesson: Surface Areas of Composite Solids Geometry • Concepts and Skills • Glencoe Math • Course 2 • Volume 2 • Math in Focus • Singapore Math • Course 2 • Volume B • Common Core • enVisionmath2.0 • Grade 7 • Volume 2 • Common Core • Go Math! • Grade 7 • Middle School • Common Core

Mathematics

In this lesson, we will learn how to find the surface area of a composite solid using the formulas for lateral or total surface areas of a single solid.

Video

17:40

Sample Question Videos

05:03
04:18
05:01

Worksheet: 18 Questions • 8 Videos

Q1:

The given figure is made by placing a cube of side length 13 cm on the top of another cube of side length 18 cm. Find its surface area.

Q2:

If a part of a cube, whose edge length is 7 cm, is cut to form a cuboid with side lengths of 3 cm, 4 cm, and 4 cm, find the surface area of the remaining part of the cube.

Q3:

The object shown is made from two cubes, one of side 3.3 cm, and the other 1.2 cm. If you must paint this object, what area do you report?

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