Calculate the total surface area of a cylinder whose radius is 7cm and height is 21cm. 1212
1227
1232
1242

The answer is 1232cm^2

Step-by-step explanation:

Formula for total surface area of a cylinder is=2r²+2rh

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/ instead of 3.14.

It's your choice.

Thanks.

lol we need to see what the question is asking about

step-by-step explanation:

example 2 – simplify: step 1: completely factor both the numerators and denominators of all fractions. step 2: change the division sign to a multiplication sign and flip (or reciprocate) the fraction after the division sign; essential you need to multiply by the reciprocal. step 3 : cancel or reduce the fractions.