B. Calculate the area of each given. Choose your answer on the right side. Write the letter of the correct
answer on the blank before each number.
1. r= 5 cm
a. 113.04 cm2
2. d = 12 cm
b. 94.985 m2
3. r= 3 m
C. 28.26 m2
d. 78.50 cm2
4. r= 8 dm
5. d= 11 m
e. 200.96 dm2
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ANSWER:
1. d
2. a
3. c
4. e
5. b
EXPLANATION:
1. A = pi × r^2
A = 3.14 × 5^2
A = 78.50 cm^2
2. A = pi × r^2
A = 3.14 × 12^2
A = 3.14 × 6^2
A = 113.04 cm^2
3. A = pi × r^2
A = 3.14 × 3^2
A = 28.26 m^2
4. A = pi × r^2
A = 3.14 × 8^2
A = 200.96 dm^2
5. A = pi × r^2
A = 3.14 × 11^2
A = 3.14 × 5.5^2
A = 94.985 m^2
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