1.

The sides of certain triangles are 1.6 cm, 3.8 cm, 4 cm. Determine of are right triangles.

Answer»

A given triangle to be right-angled, if it satisfies Pythagorean Theorem. That is, the sum of the squares of the two smaller sides must be equal to the square of the largest side.

1.6 cm, 3.8 cm, 4 cm

Longest side = 4 cm

(4)2 = 16

and (1.6)2 + (3.8)2 = 2.56 + 14.44 = 17.00 = 17

16 ≠ 17

It is not a right triangle.



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