In the adjacent figure `BE bot` DA and CD`bot`DA then prove that m`angle1 ~= m angle3`.

In the adjacent figure, AB = BC and AC = CD . Prove that : /_ BAD : /_ ADB = 3 : 1.

In the adjacent figure AB || CD, EF bot CD and angleGED = 126^(@) , find angleAGE, angleGEF and angleFGE .

In the adjacent figure, ABC is a triangle in which angleB = 50^(@) and angleC = 70^(@) . Sides AB and AC are produced. If ‘z’ is the measure of the angle between the bisectors of the exterior angles so formed, then find 'z'.

In the adjacent figure lines PQ and RS intersect each other at point O. If anglePOR : angleROQ = 5: 7, find all the angles.

In the adjacent figures, If angle1 = angle3, angle2 = angle4 and angle3 = angle4 write the relations between angle1 and angle2 using an Euclid's postulate.

In the given figure , BD bot AC .Prove that AB^2 +CD^2 = AD^2 +BC^2

In the adjacent figure AB || CD, CD || EF and y : z = 3 : 7, find x.

In the adjacent figure m || n. A, B are any two points on m and n respectively. Let ‘C’ be an interior, point between the lines m and n. Find angleACB .

In the adjacent figure ray OS stands on a line PQ. Ray OR and ray OT are angle bisectors of anglePOS and angleSOQ respectively. Find angleROT .