Advertisements
Advertisements
प्रश्न
The diameter of a cylinder is 28 cm and its height is 20 cm. The total surface area of the cylinder is
पर्याय
2993 cm2
2992 cm2
2292 cm2
2229 cm2
MCQ
Advertisements
उत्तर
2992 cm2
The total surface area of the cylinder = 2 πr + 2r2
= 2pi (h + r)
`= [2xx22/7xx14xx(20+14)]"cm"^2` `["d" = 28 cm => "r" = 28/2 "cm" = 14 "cm" ]`
`= 20944/7 "cm"^2`
= 2992 cm2
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
