Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test Quantitative Aptitude Mensuration Solid Figures
The total surface area of a hemisphere is 462 cm2 .The diameter of this hemisphere is:
1
28 cm
2
21 cm
3
7 cm
4
More than one of the above
5
None of the above