Question

Freinds this question is from chapter Pythagoras Theorem

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Answer 1

hlw✋bestu

Good morning ✌

Answer

1)3cm,8cm,6cm

ans-We use Pythagoras theorem's converse:-

sides of triangle are 3cm,8cm,6cm

3^2+6^2=9+36=45

and 8^2=64

hence,45 not equal to 64

therefore,It is not a right triangle

2)13cm,12cm,5cm

ans-sides of triangle are 13cm,12cm,5cm

12^2+5^2=144+25=169

and 13^2=169

hence,169 is equal to 169

therefore,It is a right angled triangle

3)1.4cm,4.8cm,5cm

ans-sides of triangle are 1.4cm,4.8cm,5cm

(1.4)^2+(4.8)^2=1.96+23.04=25

and (5)^2=25

hence,(1.4)^2+(4.8)^2=5^2

therefore,It is a right angled triangle.

I hope it helps you ✌baeb❣

Answer 2

In a right triangle

Hypotenuse is the greatest side

So by Pythagoras theoram

1. 64 = 9 + 36. 64≠45
2. 169 = 25 +144. 169 =169
3. 25 = 1.96 +23.04. 25 =25

So except 1 all are right angled triangle

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