Find the curved surface area and volume of a cylinder whose height and radius are (a)15 cm and 4 cm respectively. (b) 17cm and 5.5cm respectively.
Answers
Answer:
Given :-
(a) Height is 15 cm and radius is 4 cm.
(b) Height is 17 cm and radius 5.5 cm.
To Find :-
What is the curved surface area and volume.
Formula Used :-
Curved Surface Area or CSA of Cylinder :
Volume of Cylinder :
Solution :-
Given :
Height = 15 cm
Radius = 4 cm
π = 22/7 or 3.14
According to the question by using the formula we get,
Curved Surface Area of Cylinder :
Hence, the curved surface area of cylinder is 377.14 cm².
Given :
Height = 15 cm
Radius = 4 cm
According to the question by using the formula we get,
Volume of Cylinder :
Hence, the volume of cylinder is 754.28 cm³.
Given :
Height = 17 cm
Radius = 5.5 cm
According to the question by using the formula we get,
Curved Surface Area of Cylinder :
Hence, the curved surface area of cylinder is 587.71 cm².
Given :
Height = 17 cm
Radius = 5.5 cm
According to the question by using the formula we get,
Volume of Cylinder :
Hence, the volume of cylinder is 1616.21 cm³.
Radius of cylinder (r)=7cm
Height of cylinder (h)=15cm
Curved Surface Area =2πrh
=2×(22/7)×7×15
=660cm2
Total Surface Area =2πr(h+r)
=2×(22/7)×7(15+7)
=2×22×22
=968cm2