Download presentation

Presentation is loading. Please wait.

Published byBartholomew Shelton Modified over 7 years ago

1
Chapter 11.3 Surface Areas of Pyramids and Cones

2
Vocabulary Pyramid = polyhedron in which one face (the base) can be any polygon and the other faces (the lateral faces) are triangles that meet at a common vertex Regular pyramid = a pyramid whose base is a regular polygon and whose lateral faces are congruent isosceles triangles

3
Vocabulary Slant height = length of the altitude of a lateral face of the pyramid

4
Picture

5
Lateral Area of a Regular Pyramid The lateral area of a regular pyramid is half the product of the perimeter of the base and the slant height

6
Surface Area of a Regular Pyramid The surface area of a regular pyramid is the sum of the lateral area and the area of the bases

7
Vocabulary Cone = pointed like a pyramid, but its base is a circle. Right cone = altitude is a perpendicular segment from the vertex to the center of the base

8
Lateral Area of a Cone The lateral area of a right cone is half the product of the circumference of the base and the slant height.

9
Surface Area of a Cone The surface area of a right cone is the sum of the lateral area and the area of the base

10
Classwork/Homework P620 #1-13, 18-20

Similar presentations

© 2023 SlidePlayer.com Inc.

All rights reserved.

To make this website work, we log user data and share it with processors. To use this website, you must agree to our Privacy Policy, including cookie policy.

Ads by Google