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PQR is an equilateral triangle of side 11 cm. Find the radius of incircle.1. 6.5/√3 cm2. 7.5/√3 cm3. 11/√3 cm4. 5.5/√3 cm |
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Answer» Correct Answer - Option 4 : 5.5/√3 cm Given Side of an equilateral triangle = 11 cm Concept Radius of incircle of equilateral triangle = Side/2√3 Calculation Radius of circle = 11/2√3 cm Radius of circle = 5.5/√3 cm |
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