Triangles

This topic covers concepts such as properties of an isosceles triangle, proofs for properties of an isosceles triangle, interior opposite angles in triangles, the relation between exterior angles and interior opposite angles in triangles, etc.

This topic covers the concept of congruence of two triangles.

This topic covers concepts such as criteria for congruence of triangles, SSS criteria for congruence of triangles, ASA criteria for congruence of triangles, and criteria for congruence of equilateral triangles.

This topic covers concepts such as property of a median in a right angled triangle, concurrence of the medians of a triangle, etc.

This topic covers concepts such as Inequalities in a Triangle, Side Opposite to Larger Angle in a Triangle, Side Opposite to Smaller Angle in a Triangle, Triangle Inequality for Sum of Sides, and Triangle Inequality for Difference of Sides.

This topic covers the concept of similar figures.

This topic covers concepts such as similarity of triangles, criteria for similarity of triangles, etc.