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  1. The height of an equilateral triangle is 4√3cm. The ratio of the area of its circumcircle to that of its in-circle is
    1. 2 : 1
    2. 4 : 1
    3. 4 : 3
    4. 3 : 2
Correct Option: B

Radius of the circumcircle =
2
 × 4√3 cm = 2r cm
3

Radius of the in circle =
1
 × 4√3 cm = r cm
10

∴ Required ratio = π(2r)² : πr² = 4 : 1


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