railway RRB NTPC Mock Test Series 2024-25 (CBT 1 + CBT 2) Quantitative Aptitude Mensuration Plane Figures
If the difference between the areas of the circumcircle and the incircle of an equilateral triangle is 66 cm2, then the area of the triangle is:
1
20√(3) cm2
2
2√(3) cm2
3
21√(3) cm2
4
10√(3) cm2