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:
Select the correct option with respect to the following.
Two triangles are similar if:
a) Any two of their sides are equal
b) their corresponding sides are proportional
c) Any two of their angles are equal
d) their corresponding angles are equal