tolongg bantuu yaa ,
» Lingkaran
r = d ÷ 2
r = 23 ÷ 2
r = 11,5 cm
d = r × 2
d = 0,7 × 2
d = 1,4 cm
K = πd
K = 22/7 × 28
K = 22 × 4
K = 88 cm
L = 1/2πr²
L = 1/2 × 3,14 × 10²
L = 1/2 × 314
L = 157 cm²
Jawaban:
7. B
8. D
9. C
10. A
penjelasan:
semoga membantu dan
jadikan jawaban terbaik ya
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