The perimeter of a triangle is 28 cm and the inradius of the triangle is 2.5 cm. What is the area of the triangle?
Choose the most appropriate option:
A) 22	B) 35	C) 77	D) 54	E) 23
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 * 28/2= 
<gadget id="calculator">2.5 * 28/2</gadget>
<output>35</output>
35 cm2   Answer:23
<result>E</result>
The perimeter of a triangle is 28 cm and the inradius of the triangle is 2.5 cm. What is the area of the triangle?