P is any point inside the rectangle ABCD. If PA = 27 cm, PB = 21 cm, PC = 6 cm, then the length PD (in cm) is equal to:
A15
B10
C12
D18
A15
B10
C12
D18
Related Questions:
In the given figure, the circle touches the sides of the quadrilateral PQRS. If PQ = a and RS = b, express (PS + QR) in terms of a and b?