engineering recuitment DRDO CEPTAM STA B Tier I (Sr. Technical Assistant) Mock Test 2022 Quantitative Aptitude Mensuration Solid Figures
Find the curved surface area of the frustum of a cone having base radius 7 cm, upper radius 4cm and height 4 cm.
1
55 π
2
12 π
3
45 π
4
44 π