In the adjacent figure, AB || CD, ‘t’ is a transversal intersecting E and F respectively. If `∠2 : ∠1` = 5 : 4, find the measure of each marked angles.

In the adjacent figure AB || CD. Find the value of x, y and z.

In the figures given below AB || CD. EF is the transversal intersecting AB and CD at G and H respectively. Find the values of x and y. Give reasons

In the adjacent figure AB || CD. Find the values of x, y and z.

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

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 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 adjoining figure, D and E are the mid-points of AB and AC respectively. If DE = 4 cm , then BC is equal to :

In the adjacent figure the sides AB and AC of Delta ABC are produced to points E and D respectively. If bisectors BO and CO of angleCBE and angleBCD respectively meet at point O, then prove that angleBOC = 90^(@)-(1)/(2) angleBAC .

Find the measure of the question marked angle in the given figure

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