Question

the circumference of the base of cylinder is 176 cm and its height is 65 cm find the lateral surface area ​

Answer 1

Answer:

2πr ×h

2×3.14×65

=408.2 cm

Answer 2

Step-by-step explanation:

let the base of the cylinder be R cm . then circumference of its base=2πrh cm. but circumference of the base=176cm. 2πr=176=2×22/7×r=176. r=(176×7/44)=28. r=28cm and h =65cm . volume of the cylinder=πr^2h cubic units. (22/7×28×28×65)cm^3=160160cm^3. lateral surface area of the cylinder=(2πrh)sq units . (2×22/7×28×65)cm^2 . 11440 cm^2.ans.