Penjelasan dengan langkah-langkah:
tinggi trapesium
= √(15² – [(33–15)/2]²)
= √(15² – (18/2)²)
= √(15² – 9²)
= √(225 – 81)
= √144
= 12 cm
Luas trapesium = (15 + 33)/2 × 12
= 48/2 × 12
= 24 × 12
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Penjelasan dengan langkah-langkah:
tinggi trapesium
= √(15² – [(33–15)/2]²)
= √(15² – (18/2)²)
= √(15² – 9²)
= √(225 – 81)
= √144
= 12 cm
Luas trapesium = (15 + 33)/2 × 12
= 48/2 × 12
= 24 × 12
= 288 cm²