<img height="1" width="1" style="display:none" src="https://www.facebook.com/tr?id=539359806247306&ev=PageView&noscript=1"/>

Ex 13.3, 1 - Diameter of the base of a cone is 10.5 cm - Area Of Cone


Transcript

Ex 13.3, 1 Diameter of the base of a cone is 10.5 cm and its slant height is 10 cm. Find its curved surface area.Β [π΄π‘ π‘ π‘’π‘šπ‘’ πœ‹=22/7] Curved Surface Area of cone of cone = Ο€rl Radius (r) of the base of cone = (10.5/2) cm = 5.25 cm Slant height (l) of cone = 10 cm Curved Surface Area of cone of cone = Ο€rl = (22/7Γ—5.25Γ—10) cm2 = (22/7Γ—525/100Γ—10) cm2 = ("22" Γ—75/100Γ—10) cm2 = 165 m2 Therefore, the curved surface area of the cone is 165 cm2.

About the Author

Davneet Singh's photo - Teacher, Computer Engineer, Marketer
Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He provides courses for Mathematics from Class 9 to 12. You can contact him here.
Didn't understand? Ask your question or doubt free.

Apna sawal puchiye!

Jail