Question

C are 1. A solid is in the form of a right circular cylinder, with a hemisphere at one end and a cone at the other end. The radius of the common base is 3.5 cm and the heights of the cylindrical and conical portions are 10 cm and 6 cm, respectively. Find the total surface area of the solid. (Use T 3.14]​

Answer 1

Height of the cylindrical part and cone are 10cm and 6cmrespectively

Radius of cone , cylinder and hemi sphere=3.5cm

r=3.5cm for both Cylinder and cone

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

A=2πr

2

+2πrh+πr(

h

2

+r

2

)

A=2π×3.5×3.5+2π×3.5×10+π×3.5(

3.5

2

+6

2

)

A=373.3cm

2

Answer 2

refer the attachment hope its help u

$\large \bold \purple{good \: night}$