Question

does 7cm, 8 cm, 9 cm form a right angle triangle​

Answer 1

SOMETHING YOU NEED TO KNOW

• Sum of 2 sides of a triangle is always equal or greater than the third side of a triangle.

• If the square of 2 sides of a triangle is equal to the third side, then it is a right angled triangle.

Given lengths include 7cm, 8cm and 9 cm

Let

• AB = 7 cm

• BC = 8 cm

• CA = 9 cm

Now,

• AB² = 7² cm = 49 cm

• BC² = 8² cm = 64 cm

• CA² = 9² cm = 81 cm

The sum of 2 smaller sides (AB and BC) is not equal to CA

Hence, it is not a right angled triangle.

                                                                   

Answer 2

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Does 7cm, 8 cm, 9 cm form a right angle triangle ?

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No .

The sides of length 7cm, 8cm and 9cm cannot form a Right Angled Triangle.