" 7. Luas permukaan bangun ruang di atas adalah... A. 7.488 cm² B. 1.296 cm C. 360 cm² D. 576 cm² 12 cm 10 cm 1 10cm 13 cm
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Verified answer
Jawab:
Penjelasan dengan langkah-langkah:
diketahui
s = 10 cm
alas segitiga = 10 cm
tinggi segitiga = 13 cm
Luas permukaan = luas sisi alas + luas seluruh sisi tegak
= luas persegi + 4 luas segitiga
= sxs + 4 (1/2 x a x t)
= 10 x 10 + 4(1/2 x 10 x 13)
= 100 + 260 = 360 cm²