The perimeter of a triangle is 28 cm and the inradius of the triangle is 2.0 cm. What is the area of the triangle?  Options:
A) 28 cm2  B) 27 cm2  C) 29 cm2  D) 25 cm2  E) 35 cm2
Area of a triangle = r * s   Where r is the inradius and s is the semi perimeter of the triangle.   28 cm2rea of triangle = 2.0 * 28/2= 
<gadget id="calculator">2.0 * 28/2</gadget>
<output>28</output>
28 cm2   28 cm2nswer: 28 cm2
<result>A</result>
The perimeter of a triangle is 28 cm and the inradius of the triangle is 2.0 cm. What is the area of the triangle?