If the two smaller sides of a right angled triangle are 4cm and 5cm, find its area.

A.
24cm^{2} 
B.
10cm^{2} 
C.
8cm^{2} 
D.
6cm^{2}
Correct Answer: Option B
Explanation
Area of (Delta)PQR = (frac{1}{2})bh
= (frac{1}{2}) x 4 x 5
= 10cm^{2}
Area of (Delta)PQR = (frac{1}{2})bh
= (frac{1}{2}) x 4 x 5
= 10cm^{2}