The perimeter of a triangle is 28 cm and the inradius of the triangle is 2 5 cm What is the area of ...........

Quantitative Aptitude ( CCS) Mensuration 2D

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?

25 cm²

42 cm²

35 cm²

70 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 * 28/2 = 35 cm²

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