In `DeltaABC`, AD is the perpendicular bisector of BC (See adjacent figure). Show that` DeltaABC` is an isosceles triangle in which AB = AC.

In triangleABC, AD is the perpendicular bisector of BC. Show that triangleABC is an isosceles triangle in which AB = AC.

In Delta ABC , AD is the perpendicular bisector of BC. Show that Delta ABC is an isoscelss tringle in which AB = AC.

DeltaABC is an isosceles triangle in which AB = AC. Show that /_ B = /_ C.

In DeltaABC , the bisector AD of A is perpendicular to side BC Show that AB = AC and DeltaABC is isosceles.

ABC is an isosceles triangle with AB = AC. Draw AP _|_ BC to show that A = B.

In DeltaABC , AD is drawn perpendicular to BC. If BD:CD=3:1 , then prove that BC^(2)=2(AB^(2)-AC^(2)) .

D is a point on side BC ΔABC such that AD = AC (see figure). Show that AB > AD.

In DeltaABC, D, E and F are the midpoints of sides AB, BC and CA respectively. Show that DeltaABC is divided into four congruent triangles, when the three midpoints are joined to each other. (ΔDEF is called medial triangle)

In a DeltaABC , if D is the middle point of BC and AD is perpendicular to AC, then cos C equals

If p is the length of perpendicular from A to BC in a DeltaABC, then: