Jawaban dengan langkah-langkah
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Jawaban dengan langkah-langkah
5760 = 1/3 × 36×20 × t
5760 = 240t
t = 24cm
B) tinggi 1 segitiga = t (Yang garis merah)
t² = 18²+24²
t = 30 cm
Luas = 36×20 + 4×30×20÷2
= 720 + 1200
= 1920cm²
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