If the sides of a triangle are 31 cm, 29 cm and 15 cm, what is its area?  Answers.
A) 220.75 cm 2
B) 258 cm 2
C) 225.50 cm 2
D) 222.25 cm 2
E) 217.5 cm 2

Rationale: "the triangle with sides 31 cm , 29 cm and 15 cm is right angled , where the hypotenuse is 31 cm . area of the triangle = 1 / 2 * 29 * 15 = 217.5 cm 2 answer : e"
Answer: E