A) Luas Permukaan atap rumah
= 4 x Luas segitiga
= 4 x 1/2 x 8 x 5
= 2 x 8 x 5
= 80 m²
B) Banyak genteng
= 80 m² x 16 buah/m²
= 1.280 buah genteng
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A) Luas Permukaan atap rumah
= 4 x Luas segitiga
= 4 x 1/2 x 8 x 5
= 2 x 8 x 5
= 80 m²
B) Banyak genteng
= 80 m² x 16 buah/m²
= 1.280 buah genteng