The area of the triangle formed by the points P (0, 1), Q (0, 5) and R (3, 4) is ______.
A 16 sq. units
B 8 sq. units
C 4 sq. units
D 6 sq. units
The area of the triangle formed by the points P (0, 1), Q (0, 5) and R (3, 4) is ______.
A 16 sq. units
B 8 sq. units
C 4 sq. units
D 6 sq. units