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 correct choice:	A) 87 cm2	B) 28 cm2	C) 98 cm2	D) 26 cm2	E) 50 cm2
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= 
<gadget id="calculator">2.5 * 40/2</gadget>
<output>50</output>
50 cm2   Answer:50 cm2
<result>E</result>
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?