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The in-radius of an equilateral triangle is of length 3 cm. Then the length of each of its medians is
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- 12 cm
- 9/2 cm
- 4 cm
- 9 cm
- 12 cm
Correct Option: D
First draw a equilateral triangle ABC.
As we know that in equilateral triangle centroid, incentre, orthocentre coincide at the same point.
| ∴ | = In radius | |
| 3 |
∴ Height = Median = 3 × 3 = 9 cm.
