Question

Classify triangles on the basis of angles

Answer 1

Answer:

Acute-angled triangle: If all the three angles of a triangle are acute angles (i.e., each measures less than 90°), it is called an acute-angled triangle.

Right-angled triangle: If one of the angles of a triangle is a right angle (i.e., measures 90°), it is called a right-angled triangle.

Obtuse-angled triangle: If all the three angles of a triangle is an obtuse angles (i.e., measures more than 90°), it is called an obtuse-angled triangle.

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Answer 2

Answer:

Classification of Triangles on the Basis of Their Sides.

• Equilateral triangle:   All the three sides are equal.
• Isosceles triangle:  Two side are equal adjacent
• Scalene triangle : In a scalene triangle, all the three sides are unequal.