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Glencoe Math: Course 3, Volume 2

GM

Glencoe Math: Course 3, Volume 2 View details

4. Surface Area of Cylinders

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Exercise 1 Page 622

Use the formula for the surface area of a cylinder.

603.2 yd^2

Practice makes perfect

We are given a cylinder and want to find its surface area.

To calculate the surface area of a cylinder, we can use the following formula. S=2π rh+2π r^2 In this formula, r is the radius of the base and h is the height of the cylinder. By substituting r with 6 and h with 10 into the formula, we can solve for S. Let's do it!

S=2π rh+2π r^2

r= 6, h= 10

S=2π( 6)( 10)+2π( 6)^2

▼

Simplify right-hand side

Calculate power

S=2π( 6)(10)+2π(36)

Multiply

S=120π+72π

Add terms

S=192π

Use a calculator

S=603.185789...

Round to 1 decimal place(s)

S≈ 603.2

The surface area of the cylinder is about 603.2 yd^2.

Subchapter links

Guided Practice p.622

Independent Practice p.623

H.O.T. Problems p.624

Standardized Test Practice p.624-626

Extra Practice p.625

Common Core Review p.626