The sides of a right-angled triangle are in the ratio 3:4:5 and the area of the triangle is 96 cm². The length of the largest side of the triangle is _____?
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(3x)²+(4x)²=(5x)²
1/2×3x×4x=96
=>6x²=96
=>x²=16
=x=4
The length of the largest side of the triangle is 4×5 cm=20 cm
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