Question

PLSSSS HELPPP MEEEEEE

The circumference of the smaller circle is 20% of the circumference of the larger circle. Find the circumference of the larger circle. Round your answer to the nearest tenth.

Answer 1

Circumference of the smaller circle, using
`C = \pi d`, is approximately equal to 18.85 (I used the high floating point precision approximation of pi my calculator has in memory, then rounded to 2 decimal points.)

Using the formula
`S = 0.2L`, which in English says "the smaller circle's circumference is equal to 20% of the larger circle's", we can substitute the known value S:
`18.85 = 0.2L` and solve for L:
`(18.5)/(0.2) = L, L = 92.5`.

So the larger circle has a circumference approximately equal to 92.5 units.