Question

The sides of certain triangles are given below. Determine which of them right triangles are. 

1.6cm, 3.8cm, 4cm 

Answer 1

A = 1.6 cm, b= 3.8 cm and c= 4 cm
Then 

`a^2+b^2=(1.6)^2+(3.8)^2` 

=2.56+14.44 

=16 

`a^2+b^2≠ c^2` 

Thus, the given triangle is not right-angled.