A toy is in the form of a cone mounted on a hemisphere of diameter 7 cm the total height of a toy is 14.5 cm find the volume and the total surface area of toy take Pie is equal to 22 upon 7
Answers
Answered by
1
this question of answer is 5656
Answered by
1
Diameter of hemisphere=7cm
Radius of hemispherer=d/2
=
2
7
=3.5cm
Height of hemisphere=Radius of hemisphere
=3.5cm
Height of Toy=14.5cm
Height of cone=14.5−3.5=11cm
Radius of cone=3.5cm
∴ Volume of cone=Volume of cone+Volume of hemisphere
=
3
1
⋅πr
2
h+
3
4
⋅πr
3
=
3
1
⋅
7
22
⋅(3.5)
2
⋅11+
3
4
⋅
7
22
(3.5)
3
Volume of toy=320.83cm
3
.
Similar questions