Lessons

1. Basics
2. Deductive Reasoning
3 - Parallel lines
4 - Congruent Triangles
6 - Inequalities
7 - Similar Polygon
8 - Rt. Triangles
9 - Circles
10 - Constructions
11 - Areas of 2D objects
12 - Areas and Volumes
13 - Coordinates

Spheres

Objective:

• Learning and using the parts of spheres, finding areas and volumes of spheres

Lesson 12-2 Spheres

Sphere: Figure with every point on its surface at an equal  distance from the center

 Theorem 12-9 The area of a sphere equals 4 times the square of the radius. (A=4r2)   Theorem 12-10 The Volume of a sphere equals 4/3 times the cube of the radius. (A=4/3 r3)     The radius: 5  Area=4r2 = 4(52)=100 Volume= 4/3 r3 =4/3 (53)= 500/3

Quickie Math Copyright (c) 2000 Team C006354
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