If the sides of a triangle are 52 cm, 48 cm and 20 cm, what is its area?
Choose the correct choice from the following answers:
A) 480 cm 2 B) 765 cm 2 C) 216 cm 2 D) 197 cm 2 E) 275 cm 2

Rationale: "the triangle with sides 52 cm , 48 cm and 20 cm is right angled , where the hypotenuse is 52 cm . area of the triangle = 1 / 2 * 48 * 20 = 480 cm 2 answer : a"
Answer: A