Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Aku memang Bodoh -_-.
Jawaban:
L permukaan = 2 × L.alas + L.bidang tegak
= ( 2 × 1/2 ×9 × 12 ) + {(9×10)+(12×10)+(15×10)}
= 108 + 360
= 468 cm kuadrat
Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Aku memang Bodoh -_-.
Jawaban:
L permukaan = 2 × L.alas + L.bidang tegak
= ( 2 × 1/2 ×9 × 12 ) + {(9×10)+(12×10)+(15×10)}
= 108 + 360
= 468 cm kuadrat