2 Answers

Maxim Kumpan · Answer 1 · 2023-05-29T03:20:06+0000

Answer:

hope this helps:)

Explanation:

Circumference

The diameter here is 0.4

so divide by two to get the radius

0.4/2 = 0.2

0.2 = r (radius)

so your answer depends on whether you use full (endlessly repeating pi) or partial (3.14) pi

Full pi -

assuming you're using full
$\pi$ (pi) for this equation your answer would be 1.2566370614... since circumference =
$r2\pi$

3.14 pi -

assuming you're using 3.14 for pi your answer would then be 1.256 since your using 3.14 instead of full pi.

area =
$\pi r^2$

r (radius) = 0.2

because of PEMDAS exponents are done first (
r^2 )

0.2^2 = 0.04

so your answer (again) depends on whether you use full (endlessly repeating pi) or partial (3.14) pi

Full pi -

assuming you're using full pi for this equation your answer would be 0.12566370614... since a =
$\pi r^2$

3.14 pi -

assuming you're using 3.14 for pi your answer would just be 0.1256