Answer:
The answer is 1232cm^2
Step-by-step explanation:
Formula for total surface area of a cylinder is=2[tex]\pi[/tex]r²+2[tex]\pi[/tex]rh
radius=7 cm
height=21 cm
∴TSA= 2 x 3.14 x 7² + 2 x 3.14 x 7 x 21
TSA= 2 x 3.14 x 49 + 2 x 3.14 x 7 x 21
TSA=1232cm².
You can also use 22/7 for pile/[tex]\pi[/tex] instead of 3.14.
It's your choice.
Thanks.
