Obtuse triangle a triangle whose one angle is obtuse is called an obtuse-angled triangle or an obtuse triangle.

A triangle can have two obtuse angles

triangle can have ___ obtuse angles

The altitude of an obtuse angled triangle lles____of the triangle.

Write the sum of the angles of an obtuse triangle.

Write the sum of the angles of an obtuse triangle.

A triangle whose one angle is more than 90^(@) is called a scalene triangle (b) a right triangle an acute triangle (d) an obtuse triangle

By giving counter examples , show that "If measures of all the angles of a triangle are equal, then the triangle is an obtuse angled triangle" are not true: