The perimeter of a triangle is 20cm 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) 25 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 * 20 / 2 = 25 cm 2 answer : option c"
Answer: C