Question

in a triangle of ABC,AB= 11 cm , BC= 60 cm and AC = 61 cm. Examine if ABC is a right triangle. If yes, which angle is equal to 90° ?​

Answer 1

≡QUESTION≡

In a triangle of ABC,AB= 11 cm , BC= 60 cm and AC = 61 cm. Examine if ABC is a right triangle. If yes, which angle is equal to 90° ?​

║⊕ANSWER⊕║

Here the 61 is the largest number so 61 must be a longest side(may be hypotenuse).

AC² = 61² = 3721

AB² =  11² = 121

BC² = 60² = 3600

AB² + BC² = 11 ² + 60 ²

                 = 121 + 3600

                 = 3721

AB² + BC² = AC²

11 ² + 60 ² = 61 ²

So, 11, 60 and 61 are the sides of right triangle.

As AC is the hypotenuse so ∠B = 90°

Answer 2

Step-by-step explanation:

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