We are use the Pythagoras Theorem to prove this.
if the square of the two shorter sides is equal to the square of the longest side, it is a right angle.
a² + b² = 7² + 24²
a² + b² = 49 + 576
a² + b² = 626
√(a² + b²) = √626
√(a² + b²) = 25 in
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Answer: It is a right angle triangle.
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