Lesson: Surface Area of Composite Solids

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

Sample Question Videos

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Worksheet: 15 Questions • 2 Videos

Q1:

The buoy below is made of two right circular cones on a common base of radius 27 cm. If the cost of an erosion resistant coat is 300 LE per square metre, find, to the nearest tenth, the cost of painting the buoy.

Q2:

This shape is composed of a cylinder and a hemisphere. Find the surface area of the shape leaving your answer in terms of .

Q3:

The buoy below is made of two right circular cones on a common base of radius 48 cm. If the cost of an erosion resistant coat is 300 LE per square metre, find, to the nearest tenth, the cost of painting the buoy.

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