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UP Police SI (दरोगा) Previous Paper 11 (Held On: 13 Dec 2017 Shift 2)

Option 3 : 3 units

**Given, **

The sides gave 8 units,15 units, and 17 units

**Concept used, **

Area of triangle = 1/2 b × h

The value of the radius of the circle = 2 × Area / Sum of the sides

**Calculation **

The Area of triangle = 1/2 × 8 × 15

⇒ The area of triangle = 60

sum of the sides = 8 + 15 + 17 = 40

Radius of the circle = 2 × 60 /40

The radius of the circle = 3

**∴ The radius of the circle = 3 units **