anggap a adalah b
_______________
a = 9,6 cm
c = 10,4 cm
b = ?
_______________
b = √c² - a²
b = √10,4² - 9,6²
b = √108,16 - 92,16
b = √16
b = 4 cm
Opsi (A)
_______________________________
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a. 4
c²=a² + b²
10,4²= 9,6² + a²
108,16 = 92,16 + a²
108,16 -92,16 = a²
16 = a²
a= √16
a= 4
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