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tinggi limas = 12 cm
tinggi sisi tegak = 13 cm
luas sisi tegak = 4 (1/2 x 10 x 13) = 4(65) =260 cm²
2/ tinggi limas 12cm
berapa luas sisi tegak?
- phytagoras= √x= 144+25 = 13
luas segitiga 1/2 a.t = 1/2. 13.10=65