the perimeter of a triangle is 22 cm and the inradius of the triangle is 3.5 cm. what is the area of the triangle? Choose the correct option
A) 22	B) 35	C) 77	D) 54	E) 38
<gadget id="calculator">(3.5 * 22) / 2</gadget>
<output>38.5</output>

<result>E</result>
the perimeter of a triangle is 22 cm and the inradius of the triangle is 3.5 cm. what is the area of the triangle?
triangle_area(3.5, 22)
"area of a triangle = r * s where r is the inradius and s is the semi perimeter of the triangle . area of triangle = 3.5 * 22 / 2 = 38.5 cm 2 answer : e"