The perimeter of a triangle is 40 cm and the inradius of the triangle is 2.5 cm. What is the area of the triangle Choose the most appropriate option
A) 72	B) 828	C) 50	D) 34	E) 35

Rationale: "explanation : area of a triangle = r * s where r is the inradius and s is the semi perimeter of the triangle . area of triangle = 2.5 * 40 / 2 = 50 cm 2 answer : option c"
Answer: C