Question

A toy is in the form of a right circular cylinder closed at one end and with a hemisphere on the other end.
The height and the radius of the base are 15 cm and 6 cm respectively. The radius of the hemisphere are
cylinder are same. Calculate the total surface area and the volume of the toy if the toy is painted at the rate
of Rs. 2.50 per 10 cm-, find the cost of painting the toy.​

Answer 1

Answer:

Height of the cylindrical part =13cm

Radius of cone , cylinder and hemi sphere=5cm

r=5cm for hemisphere cylinder and cone.

Height of cone h=30−5−13=12

The area of canvas required=Surface area of hemishphere,cylinder and cone parts of tent

A=2πr² +2πrH+πr(h² +r²)

A=2π×5×5+2π×5×13+π×5( 5² +12² )  

A=770cm²

Answer 2

Answer:

refer to this attachment ✅✅