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Do sides 7 cm, 24 cm, 25 cm form a right angled triangle ? Give reason

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#### Solution

In the triplet (7, 24, 25),

7^{2} = 49, 24^{2} = 576, 25^{2} = 625 and 49 + 576 = 625

The square of the largest number is equal to the sum of the squares of the other two numbers.

∴ Sides 7 cm, 24 cm, 25 cm form a right angled triangle.

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