In the given figure sides of `anglePQR` and `angleXYZ` are parallel to each other. Prove that, `anglePQR~=angleXYZ` .

Observe the given figure : Say the sides of the triangle.

Show that lines x-2y-7=0 and 2x-4y+15=0 are parallel to each other.

In the given figure, squarePQRS is a square. If DeltaQRT and DeltaPRU are similar to each other, then prove that A(DeltaQRT) = 1/2 A(DeltaPRU) .

In the given figure, if line AB || line CF and line BC || line ED, then prove that angleABC=angleFDE .

In the given figure, point A is on the bisector of angleXYZ . If AX = 2 cm, then find AZ.

As shown in the adjoining figure, two chords AB and CD of the same circle are parallel to each other. P is the centre of the circle. Show that angleCPA = angleDPB .

In the given figure, if x=125^(@) and y=54^(@) then are lines m and n parallel ? Justify.

In the given figure, square PQRS is a cyclic quadrilateral such that anglePQR=50^@ then anglePSR = (a) 50^@ (b) 100^@ (c) 120^@ (d) 130^@

If we keep the mirrors parallel to each other, how many images will we see ?

In the adjoining figure, seg YZ and seg XT are altitudes of triangle WXY which intersect each other at point P. Prove that: Points X, Z, T and Y are concyclic points.