A balloon has a circumference of 11 cm. Use the circumference to approximate the surface area of the balloon to the nearest squa

Question

Sav [38]

3 years ago

7

A balloon has a circumference of 11 cm. Use the circumference to approximate the surface area of the balloon to the nearest squa

re centimeter.

Mathematics

2 answers:

elixir [45] · Answer 1 · 2022-03-24T23:28:09+03:00

elixir [45]3 years ago

8 0

Try <span>38.465cm I'm not good at math but its the best I could do

</span>

Nezavi [6.7K] · Answer 2 · 2022-03-25T01:50:15+03:00

Nezavi [6.7K]3 years ago

5 0

C = 2(pi)(r) so 11= 2(pi)(r) if you divide 11 by 2(pi) using pi as 3.14 you get r = 1.752 then plug in the number to S.A. = 4(pi)r^2 you will get approximately 38.55 sq. Cm of surface area.