A tent is in the shape of a right circular cylinder surmounted by a ri

1.	A tent is in the shape of a right circular cylinder surmounted by a right circular cone, the height of the cylinder and the conical part are 40 m and 21 m respectively. if the base diameter of the tent is 56 m(r=28m)find the area of required canvas to make this that, if 20% of the area of canvas is consumed ki folding and sewing. ANS:-12650m².
Answer» Answer: Diameter =28 m RADIUS = 2 28 =14 m (=r) Height h=3 m Curved Surface area of Cylinder =2πrh square UNIT =2× 7 22 ×14×3 =264m 2 CONE: radius =14 m; h=10.5 m Slant height l= h 2 +r 2 = (10.5) 2 +14 2 = 306.25 =17.5 m Curved surface area of cone =πrl square unit = 7 22 ×14×17.5 =770m 2 Total surface area of the tent =264+770=1034m 2 .

A tent is in the shape of a right circular cylinder surmounted by a right circular cone, the height of the cylinder and the conical part are 40 m and 21 m respectively. if the base diameter of the tent is 56 m(r=28m)find the area of required canvas to make this that, if 20% of the area of canvas is consumed ki folding and sewing. ANS:-12650m².

Answer»

Answer:

Diameter =28 m

=14 m (=r)

Height h=3 m

Curved Surface area of Cylinder =2πrh square UNIT

=2×

×14×3

=264m

radius =14 m; h=10.5 m

Slant height l=

(10.5)

+14

306.25

=17.5 m

Curved surface area of cone =πrl square unit

×14×17.5

=770m

Total surface area of the tent =264+770=1034m