Question

Can an obtuse-angled triangle be right-
angled?​

Answer 1

Heya let's see...

Since a triangle's angles must sum to 180° in Euclidean geometry, no Euclidean triangle can have more than one obtuse angle. Acute and obtuse triangles are the two different types of oblique triangles — triangles that are not right triangles because they have no 90° angle.

✓Ace

$\bf{\red{Mr Príñçé}}$

Answer 2

Answer: above 90 degree is called obtuse angle.

at sharp 90 degree it is known as right angle.