Jawaban:
diameter tutup lampu = 20 cm
Penjelasan dengan langkah-langkah:
diket
s = 30 cm
luas selimut = 942 cm²
ditanya
d = ?
jawab
luas selimut = π x s x r
942 = 3,14 x 30 x r
942/ 3,14 x 30 = r
10 = r
--> diameter = 2r
= 2 (10) = 20 cm
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Jawaban:
diameter tutup lampu = 20 cm
Penjelasan dengan langkah-langkah:
diket
s = 30 cm
luas selimut = 942 cm²
ditanya
d = ?
jawab
luas selimut = π x s x r
942 = 3,14 x 30 x r
942/ 3,14 x 30 = r
10 = r
--> diameter = 2r
= 2 (10) = 20 cm