1. Algebra
Library
Chapter 1: Pre-Algebra Concepts
Lesson 3.5: Applications of Numerical Expressions
Practice
Refer to the following diagram in answering the questions.
1. Write an expression for finding the volume of the cone less the volume of
the cylinder.
2. Evaluate the expression from the previous question under the following
conditions:
a. h1 = 2, h2 = 3, r1 = 1.5, r2 = 3
b. h1 = 4, h2 = 7, r1 = 3, r2 = 5
c. h1 = 4, h2 = 6, r1 = 4, r2 = 6
d. h1 = 7, h2 = 10, r1 = 4, r2 = 8
1

2. Algebra
Library
Chapter 1: Pre-Algebra Concepts
Lesson 3.5: Applications of Numerical Expressions
Answer Key
1 2
r h r12h1
1. 3 2 2
2.
a. 14.1372
b. 70.1622
c. 8π
d. 318.348
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