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The inradius of an equilateral triangle is 10cm. What is the circumradius (in cm) of the same triangle? |
5 10\(\sqrt{3}\) 20 20\(\sqrt{3}\) |
20 |
The ratio of inradius to circumradius of an equilateral triangle is = 1 : 2 Therefore, if inradius = 10cm Then, circumradius = 2× 10 =20 cm. |
