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sisi persegi = 24cm
tinggi limas = 9cm
- ditanya = luas limas??
luas limas = l.alas + luas sisi tegak
luas alas = s²
= 24 × 24
= 576cm²
mencari tinggi sisi tegak dgn teori phytagoras dmn sisi siku siku = 24 ÷ 2 = 12cm & 9cm
t = √12² + 9²
t = √144 + 81
t = √225
t = 15cm
luas sisi tegak = 4×luas segitiga
= 4 × ½ × a × t
= 4 × ½ × 24 × 15
= 2 × 24 × 15
= 720cm²
luas limas = luas alas + luas sisi tegak
= 576cm² + 720cm²
= 1296cm²
semoga membantu
-alya❤
tinggi limas = 9 cm
tinggi segitiga = 12^2 + 9^2
= 144 + 81
= 225 diakar = 15 cm
L = L alas + 4 × L segitiga
= 24 × 24 + 4 × 24 × 15/2
= 576 + 4 × 180
= 576 + 720
= 1.296 cm^2