Join now for JEE/NEET and also prepare for Boards Join now for JEE/NEET and also prepare for Boards. Register Now
Hey there! We receieved your request
Stay Tuned as we are going to contact you within 1 Hour
One of our academic counsellors will contact you within 1 working day.
Click to Chat
1800-1023-196
+91-120-4616500
CART 0
Use Coupon: CART20 and get 20% off on all online Study Material
Welcome User
OR
LOGIN
Complete Your Registration (Step 2 of 2 )
Sit and relax as our customer representative will contact you within 1 business day
2. Find the surface area of a sphere of diameter: (i) 14 cm (ii) 21 cm (iii) 3.5 m 2. Find the surface area of a sphere of diameter: (i) 14 cm (ii) 21 cm (iii) 3.5 m
(i) Diameter (d) = 14 cm 14 Radius (r) = = 7 cm Now, surface area of the sphere = 4xr2 192 = 4 x 22 7 x 7 x 7 = 4 x .22 x 7 = 616cm2. (ii) Diameter (cl) = 21 cm :. Radius (r) = 21 cm 2 Now, surface area of the sphere = 4nr2 22 21 21 = 4 x x x = 1386 cm (iii) Diameter (d) = 3.5 m . 3.5 7 :. Radius (r) m = m Now, surface area of the sphere = 4nr2 22 7 7 22x 7 2 = 4 x 7 x 4 x 4 = 4- = 38.5 m •
Dear , Preparing for entrance exams? Register yourself for the free demo class from askiitians.
points won -