What is the length of missing side b in the figure below?
2 answers:
If you use the Pythagorean theorem you get 10.95cm, which is also the square root of 120.
According to the theory
b^2 = (13)^2 - (7)^2
b^2 = 169 - 49 = 120
b= root(120)
b= 10.95 cm
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