state gov GSSSB Combined Clerk Mock (ગુજરાત) Test 2024 Quantitative Aptitude Mensuration Solid Figures
A cardboard sheet in the form of a circular sector of radius 30 cm and central angle 144° is folded to make a cone. What is the radius of the cone?
1
12 cm
2
18 cm
3
21 cm
4
None of the above