tolong jawab dong pr sya

1)
k = 2Πr
k = 2.3,14.10
k = 62,8 cm

L = Πr²
L = 3,14.10.10
L = 314 cm²

2)
k = Πd
k = 22/7.14
k = 44 cm

# r = 1/2×d = 1/2 × 14 = 7 cm

L = Πr²
L = 22/7.7.7
L = 154 cm²

3)
k = 2Πr
k = 2.3,14.15
k = 94,2 cm

L = Πr²
L = 3,14.15.15
L = 706,5 cm²

4)
k = Πd
k = 22/7.56
k = 176 cm

# r = 1/2×d = 1/2 × 56 = 28 cm

L = Πr²
L = 22/7.28.28
L = 2464 cm²

5)
k = 2Πr
k = 2.3,14.12
k = 75,36 cm

L = Πr²
L = 3,14.12.12
L = 452,16 cm²

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