Is a triangle with side lengths 5 cm, 12 cm, and 13 cm a right-angled triangle?

Type: MCQ • Marks: 1

A. No

B. Only if isosceles

C. Yes, because 5^2 + 12^2 = 13^2

D. Cannot be determined

Explanation

$25 + 144 = 169 = 13^2$. By the converse of Pythagoras theorem, it is a right-angled triangle.

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Class 7th Ganita Prakash 1

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