Question

The sides of a triangle are 21 cm, 29 cm and 20 cm. Show that it is a right-angled triangle.​

Answer 1

Answer:

longest side = hypotenuse

= 29 cm

According to Pythagoras theorem

841 = 441 + 400

841 = 841

therefore it is a right angled triangle

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Answer 2

Step-by-step explanation:

By Pythagoras theorum

H²=P²+B²

29²=21²+20² [because hypotenuse is the longest side of right angled triangle]

841=441+400

841=841

hence proved