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= 15 cm
c = t segitiga
= 17 cm
a² + b² = c²
b² = c² - a²
b² = 17² - 15²
b² = 289 - 225
b² = 64
√b² = √64
b = 8
s = b × 2
= 8 cm × 2
= 16 cm
LP = La + Jumlah L sisi tegak
= s² + 4(1/2 × a × t)
= 16² + 4(1/2 × 16 × 17)
= 256 + 4(136)
= 256 + 544
= 800 cm²
Jadi luas permukaan limas tersebut adalah 800 cm²