Question

a curved surface area of right circular cylinder of height 28cm is 880cm square Find the radius of base of cylinder solve full answer

Answer 1

let radius =r
curved surface area= 880 cm^2
height=28 cm
880=2×22/7×r×28
880/2×22×4=r
r=5 cm answer

Answer 2

Hlo friend.. Cutiepie Here.

Here is ur answer :


Given,

Curved surface area of cylinder = 880 cm²

Height h of cylinder = 28 cm

We have to find radius of cylinder.

Let the radius be x.

CSA of cylinder =
$2\pi rh$


$880 = 2 \times \frac{22}{7} \times r \times 28$

$880 = 2 \times 22 \times 4 \times r$


$r = 880 \times \frac{1}{2} \times \frac{1}{22} \times \frac{1}{4}$


$r = \frac{40}{8}$


$r = 5 \: cm$


Therfore, the radius of cylinder is 5 cm.

HOPE IT HELPS YOU..


REGARDS
@sunita