The centroid, orthocentre, and incentre of a triangle are collinear.

Check whether given sides are the sides of right-angled triangles, using Pythagoras theorem.

$8,15,17$

Check whether given sides are the sides of right-angled triangles, using Pythagoras theorem.

$12, 13, 15$

Check whether given sides are the sides of right-angled triangles, using Pythagoras theorem.

$30, 40, 50$

Check whether given sides are the sides of right-angled triangles, using Pythagoras theorem.

$9, 40, 41$

Check whether given sides are the sides of right-angled triangles, using Pythagoras theorem.

$24, 45, 51$

Find the unknown side in the following triangle.

Find the unknown side in the following triangle.