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
The numerator of a fraction is 4 less than its denominator. If the numerator is decreased by 2 and the denominator is increased by 1, then the denominator becomes eight times the numerator. Find the fraction.
. What is the value of ∠BAD