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= 5
tinggi sisi segitiga tegak
LΔ = a x t
= 5 x 13
= 65
luas permukaan limas
Lp = s² + 4 x LΔ
= 10 x 10 + 4 x 65
= 100 + 260
= 360 cm²
jawabannya 360 cm²
= 10 cm x 10 cm + 4 (1/2 x 13 x 10)
= 100 cm² + 260 cm²
= 360 cm²
13 (tinggi sisi tegak) dapet dari pythagoras