Find the area of a rectangle one side of which measures 12 m and the diagonal measures 13
m
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Answer: 60m²
A=ab
d=13, a=12, b=?
According to the Pythagorean theorem:
b²=d²-a²
b=√(d²-a²)
b=√(13²-12²)=√(169-144)=√25=5
A=ab=12×5=60m²
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