If O be the circumcentre of a ΔPQR and ∠QOR = 110⁰, ∠OPR = 25⁰, then the measure of ∠PRQ is

N is the foot of the perpendicular from a point P of a circle with radius 7 cm, on a diameter AB of the circle. If the length of the chord PB is 12 cm, the distance of the point N from the point B is

The diagonals AC and BD of a cyclic quadrilateral ABCD intersect each other at the point P. Then, it is always true that

If G is the centroid of ΔABC and ΔABC = 48 cm2, then the area of ΔBGC is

In a ΔABC, ∠A = 90⁰, ∠C = 55⁰, . What is the value of ∠BAD

If x² = y+z, y² = z+x and z²=

x+y, then the value of 1/1+x + 1/1+y + 1/1+z is