D = …

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r = …
pi = 3,14
L = 314 cm²

d = …
r = …
pi = 22
—-
7
L = 154 cm²

Tolong isi titik – titik nya

D = …

Jawaban:

1 d 20 cm²

r 10 cm²

2 d 49 cm²

r 7 cm²

Jawaban:

1)d=20cm

r=10cm

2)d=14cm

r=7cm

semoga membantu:)