wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

A semi circular sheet of metal of diameter 28 cm is bent into an open conical cup. Find the depth and capacity of cup.

Open in App
Solution

Diameter of the circular sheet is 28cm
Radius=14cm
Circumference of semicircular sheet=14π
Now, the semicircular sheet is bent in to an open conical cup.
Slant height of conical cup=l=radius of circular sheet=14cm
Circumference of the base of conical cup=Circumference of semicircular sheet
2πr=14π
r=7cm
Depth of conical cup=Height of cone=l2r2=14272=19649=147=73cm
Capacity of conical cup=Volume of cone=13πr2h=13×227×7×7×73=107833cm3

flag
Suggest Corrections
thumbs-up
7
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Volume of Solids
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon