Is the triangle with sides 12 cm, 16 cm and 18 cm a right triangle? Give reason.
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Answered by
2
no it is true because
h²=s²+s²
18²=12²+16²
324=144+256
324≠400
Answered by
1
12 + 16 > 18
16 + 18 > 12
18 + 12 > 16
So, it is a triangle, according to triangle inequality property.
(18)^2 = (12)^2 + (16)^2 {Pythagoras Theorem}
324 = 144 + 256
324 is not equal to 400
So, it is not a right angled triangle.
16 + 18 > 12
18 + 12 > 16
So, it is a triangle, according to triangle inequality property.
(18)^2 = (12)^2 + (16)^2 {Pythagoras Theorem}
324 = 144 + 256
324 is not equal to 400
So, it is not a right angled triangle.
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