1.

How will you know if a triangle is a right-angled triangle?

Answer»

We can use Pythagoras' Theorem tocheck if a triangle is right-angled, using the following method:

Square the two shorter sides and add the values together.

Square the longest side.

Check if the results are same.

we can know whether a triangle is a right-angled triangle by seeing the sides one of them should be 90 degree and two of the other sides should be acute angles i.e. less than 90 degree



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