5. If two solid hemisphere of same
base radius r are join together along
their bases, then surface area of new
solid is
(a) 41tr2
(b) 3tr2
O (c) 62
0 (d) 8nr2
9:57 am
Answers
Answer:
We know that,
Curved surface area of a hemisphere =2πr
2
So, when two solids hemispheres of same base radius are joined together along their bases, then
Curved surface area of newly formed solid sphere=2×2πr
2
=4πr
2
Hence, A is the correct option.
Answer:
Procedure:
Procedure:Use the glass and draw circles on your cardboard.
Procedure:Use the glass and draw circles on your cardboard.Then move the glass and draw a new circle over the previous one.
Procedure:Use the glass and draw circles on your cardboard.Then move the glass and draw a new circle over the previous one.Each circle will become a part of the caterpillar body.
Procedure:Use the glass and draw circles on your cardboard.Then move the glass and draw a new circle over the previous one.Each circle will become a part of the caterpillar body.Cut up to the intersection with the next circle.
Procedure:Use the glass and draw circles on your cardboard.Then move the glass and draw a new circle over the previous one.Each circle will become a part of the caterpillar body.Cut up to the intersection with the next circle.Follow the border of the 2nd circle which is inside the first one.
Procedure:Use the glass and draw circles on your cardboard.Then move the glass and draw a new circle over the previous one.Each circle will become a part of the caterpillar body.Cut up to the intersection with the next circle.Follow the border of the 2nd circle which is inside the first one.Paint the circles.