Question

The sides of a triangle are 9, 12 and 15 cm. then this triangle is a

Answer 1

Heya !!

Here's your answer..⤵⤵
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Let ∆ABC is a triangle.

AB = 9 cm
BC = 12 cm
CA = 15 cm

AB² = 9² = 81

BC² = 12² = 144

CA² = 15 = 225

= AB² + BC²
= 81 + 144
= 225

= CA²

Hence, AB² + BC² = CA²

so, ∆ABC is a right angled triangle.
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Hope it helps..
Thanks :)

Answer 2

All sides are different, so it a scalene triangle &


As we can see that, they are Pythagorean triplets, i.e. (9²+12²=15²)


So,

The triangle which will be formed - scalene Right angled triangle



I hope this will help you


-by ABHAY