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tinggi segitiga = √8² + 6²
= √64 + 36
= √100
= 10 dm
= 8 dm
b = s : 2
= 12 dm : 2
= 6 dm
a² + b² = c²
8² + 6² = c²
64 + 36 = c²
100 = c²
√100 = √c²
10 = c
Jadi tinggi segitiga adalah 10 dm (B).