In triangles ABC and PQR, angle A = angle Q and angle B = angle R. Which side of triangle PQR should be equal to side AB of triangle AB of triangle ABC so that the two triangles are congruent?

M is a point on side BC of a triangle ABC such that AM is the bisector of angle BAC. Is it true to say that perimeter of the triangle is greater than 2 AM. Give reason?

Bisectors of the angles B and C of an isosceles triangle ABC with AB = AC intersects each other at O. Show that external angle adjacent to angle ABC is equal to angle BOC?

Siddhant 29/10/2016 in Class IX-X Tuition, Mathematics(Class IX-X Tuition), Triangles

What is the length of the side of the rhombus if the lengths of the diagonals of a rhombus are 16 cm and 12 cm?