In the given figure, from the point P two tangents PA and PB are drawn to a circle with center O and radius 5 cm. From the point O, OC and OD are drawn parallel to PA and PB respectively. If the length of the chord AB is 5 cm. then what is the value (in degrees) of ∠COD?

In the given figure, DE‖BC and DE=1/3 BC if area of triangle ADE=20 sq. cm, then what is the area (in sq.cm) of the triangle DEC?

An octahedron has 12 edges, How many vertices does it have, 

In the given figure, AB, AE, EF, FG and GB are semicircles. AB=56 cm and AE=EF=FG=GB. What is the area (in cm²) of the shaded region?

The equidistant point from the vertices of a triangle is called its: 

If the following figure, AC||BD, ∠CAF = 25^o, ∠DBG = 65^o and BF = BA, then ∠BFE is equal to -

In the figure below, AB is a chord of a circle with centre O. A tangent AT is drawn at point A so that ∠BAT=50°.Then ∠ADB=?

In the adjoining figure ∠AOC=140° where O is the centre of the circle then ∠ ABC is equal to: