19. r = 9 cm C =
A. 56.02 cm
B. 56.52 cm
C. 28.26 cm
D. 25.12 cm
20. C = 15.7 cm d = ?
A. 4 cm
B. 5 cm
C. 6 cm
D. 7 cm
nonsense: report
pahelp po need it rn
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19. r = 9 cm C =
A. 56.02 cm
B. 56.52 cm
C. 28.26 cm
D. 25.12 cm
20. C = 15.7 cm d = ?
A. 4 cm
B. 5 cm
C. 6 cm
D. 7 cm
nonsense: report
pahelp po need it rn
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19. r = 9 cm C = B. 56.52 cm
Sol.
C = πr²
C = 3.14(9²)
C = 3.14 × 18
C = 56.52 cm
20. C = 15.7 cm d = B. 5 cm
Sol.
d = c/π
C = 15.7 ÷ 3.14
d = 5 cm
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