Question

Find the diameter of a circle with a circumference of 50 mm. Round your answer to the nearest tenth.

16.0 mm
26.4 mm
8.4 mm
33.5 mm

Answer 1

What is the formula for the circumference of a circle?

Answer 2

Use the formula to equate to 50mm and find dimaeter

Answer 3

3.14 times what
?

Answer 4

times 50

Answer 5

?

Answer 6

use this formula :
C = pi * d
with C=circumference, d=diameter, and pi=3.14

Answer 7

so 3.14*50?

Answer 8

Circumference is given, so
pi * d = 50
3.14 * d = 50
now, solve for d

Answer 9

157

Answer 10

3.14 * d = 50
divided by 3.14 to both sides, gives us
d = 50/3.14 = ....

Answer 11

0.0628

Answer 12

15.923 my bad

Answer 13

yes, or it can be 16 :)