Penjelasan dengan langkah-langkah:
Nomor 1
60° + (x°×2) = 90°
x = (90-60) × 1/2
x = 15°
Nomor 2
L = (1/2×8×(9+6) - (8×6×1/2)
L = 60 - 14
L = 46 cm^2
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Penjelasan dengan langkah-langkah:
Nomor 1
60° + (x°×2) = 90°
x = (90-60) × 1/2
x = 15°
Nomor 2
L = (1/2×8×(9+6) - (8×6×1/2)
L = 60 - 14
L = 46 cm^2