K = 2πr
44 = 2(22/7(r)
44 = 44/7r
44/7r = 44
r = 44(7)/44
r = 308/44
r = 7 CM
LP :
= πr²
= 22/7(7)²
= 22/7(49)
= 22(49/7)
= 22(7)
= 154 CM²
jari jari
K = 2 × π × r
44 = 2 × 22/7 × r
r = 44 ÷ 2 × 22/7
r = 44 ÷ 44/7
r = 7 cm
Luas
L = π × r × r
L = 22/7 × 7 × 7
L = 22 × 7
L = 154 cm²
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K = 2πr
44 = 2(22/7(r)
44 = 44/7r
44/7r = 44
r = 44(7)/44
r = 308/44
r = 7 CM
LP :
= πr²
= 22/7(7)²
= 22/7(49)
= 22(49/7)
= 22(7)
= 154 CM²
jari jari
K = 2 × π × r
44 = 2 × 22/7 × r
r = 44 ÷ 2 × 22/7
r = 44 ÷ 44/7
r = 7 cm
Luas
L = π × r × r
L = 22/7 × 7 × 7
L = 22 × 7
L = 154 cm²