the sides of a triangle are 15cm ,36cm ,39cm.is it a right
triangle or not
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Use Pythagoras Theorem,
Use the greater side as hypotenuse
PT=(h)²=(s1)²+(s2)²
(h)=39 cm
(s1)=15 cm
(s2)=36 cm
(39)²=(15)² + (36)²
1521=(225) + (1296)
1521=1521
It satisfies the Pythagoras Theorem so it is a right angled triangle.
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