state gov TSPSC DAO (Divisional Accounts Officer) Mock Test 2024 Quantitative Aptitude Mensuration Solid Figures
The radius and height of a right solid circular cone are r and h respectively. A conical cavity of radius (r/2) and height (h/2) is cut out of this cone. What is the whole surface area of the rest of the portion?
1
(πr / 4) × ({5√r2 + h2} + 3r)
2
(πr / 4) × ({5√r2 + h2} + 4r)
3
(πr / 4) × ({5√r2 + h2} + 7r)
4
(πr / 4) × ({5√r2 + h2} + 6r)