Is a triangle with sides of 9 meters, 12 meters, and 15 meters a right triangle?

It is a triangle.

Step-by-step explanation:

Because right triangle turn in a shape.

Yes it is.

Step-by-step explanation:

For a triangle to be a right angled triangle, it needs to verify the pythagoras theorem which is

h² = p² + b²

where h is the longest side.

So,

15² = 12² + 9²

225 = 144 + 81

225 = 225

which is true.

So the triangle is a right angled triangle.

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