Jawab:
114 cm²
Penjelasan dengan langkah-langkah:
Luas tembereng= luas juring- luas segitiga= 1/4 x pi x r^2 - 1/2 x a x t = 1/4 x 3,14 x (20 cm)^2 - 1/2 x 20 cm x 20 cm = 1/4 x 3,14 x 400 cm^2 - 1/2 x 400 cm^2 = 314 cm^2 - 200 cm^2 = 114 cm^2
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Jawab:
114 cm²
Penjelasan dengan langkah-langkah:
Luas tembereng= luas juring- luas segitiga
= 1/4 x pi x r^2 - 1/2 x a x t
= 1/4 x 3,14 x (20 cm)^2 - 1/2 x 20 cm x 20 cm
= 1/4 x 3,14 x 400 cm^2 - 1/2 x 400 cm^2
= 314 cm^2 - 200 cm^2
= 114 cm^2