1. A = pi × r^2
A = 3.14 × (22)^2
A = 3.14 × (11)^2
A = 379.94 in^2
2. A = pi × r^2
A = 3.14 × (12)^2
A = 452.16 m^2
3. A = pi × r^2
A = 3.14 × (2)^2
A = 12.56 cm^2
4. A = pi × r^2
A = 3.14 × (5)^2
A = 3.14 × (2.5)^2
A = 19.625 m^2
5. A = pi × r^2
A = 3.14 × (1)^2
A = 3.14 mm^2
1. c
2. a
3. d
4. e
5. b
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SOLUTION:
1. A = pi × r^2
A = 3.14 × (22)^2
A = 3.14 × (11)^2
A = 379.94 in^2
2. A = pi × r^2
A = 3.14 × (12)^2
A = 452.16 m^2
3. A = pi × r^2
A = 3.14 × (2)^2
A = 12.56 cm^2
4. A = pi × r^2
A = 3.14 × (5)^2
A = 3.14 × (2.5)^2
A = 19.625 m^2
5. A = pi × r^2
A = 3.14 × (1)^2
A = 3.14 mm^2
ANSWER:
1. c
2. a
3. d
4. e
5. b
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