Name ______2/10/2012
Solve the equation.Circle your answer.
1. 3x = 152. 24 = 6x 3. 2x + 4 = 10 4. 2.4x + 9.35 = 20.8
Circle the letter of the correct answer.
5. A square has an area of 25 square feet. Find the length of the side.
a. 20 feet
b. 5 feet
c. 4 square feet
d. 16 square feet
6. A rectangle has an area of 20 square feet. Which of these are NOT the dimensions of the rectangle?
a. 4 feet by 5 feetb. 2 feet by 10 feet
c. 1 foot by 20 feetd. 3 feet by 6 feet
7. A rectangular prism has a volume of 60 cubic centimeters. If the length is 4 cm and the height is 5 cm, what is the width?
a. 2 cmb. 3 cm
c. 4 cmd. 6 cm
8. A circle has an area of 50.24 square meters. What is the radius of the circle?
a. 16 mb. 4 m
c. 9 md. pi m
9. A cylinder has a base area of 12 square inches. If the height is 6 inches, what is the volume?
a. 72 cubic inches
b. 2 inches
c. 226.08 cubic inches
d. 3 inches
10. A cylinder has a volume of 21 cubic meters. What is the volume of
the cone with exactly the same height and radius?
a. 10.5 metersb. 7 meters
c. 7 cubic metersd. 14 cubic meters
Name ______2/10/2012
To find a missing dimension given surface area or volume:
1st: Select the appropriate formula.
2nd: Fill in all the known information.
3rd: Simplify the formula.
4th: Solve the equation for the unknown information.
5th: Check your answer to see if it makes sense.
1. A cylinder has a surface area of 282.6 square feet. The radius is 3 ft. but the height is unknown. Find the height.
2. A cylinder has a radius of 2 cm and a surface area of 100.48 cm5. Find the height.