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McGraw Hill Glencoe Geometry, 2012

MH

McGraw Hill Glencoe Geometry, 2012 View details

3. Surface Areas of Pyramids and Cones

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Exercise 1 Page 859

Use the formulas for the lateral area and surface area of a pyramid.

Lateral Area: $384 cm^{2}$
Surface Area: $640 cm^{2}$

Practice makes perfect

Let's first calculate the lateral area and then the surface area.

Lateral Area

The given solid is a pyramid.

To calculate the lateral area of a pyramid, we can use the known formula where

P

is the perimeter of the base and

ℓ

is the slant height.

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Subchapter links

Check Your Understanding p.859

Practice and Problem Solving p.859-861

H.O.T. Problems p.861

Standardized Test Practice p.862

Spiral Review p.862

Skills Review p.862