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.

+25 = x

step-by-step explanation:

here x is the hypotenuse of a right triangle whose legs are 7 and 24.   by the pythagorean theorem, 7² + 24² must equal x²:

x² = 49 + 576 = 625.   thus, x = +√625 = +25 = x

75%

step-by-step explanation: