Question

a circle has a radius of 6.7 cm.
a) find the circumference of the circle . round your answer to the nearest centimeter.

b) find the area of the circle. round your to the nearest square centimeter

Answer 1

circumfrance of a circle = 2 * pi * radius

we have a radius of 6.7, so the equation becomes
= 2 * pi * 6.7

can you solve for the area now?

Answer 2

circumfrance is 42.076 @DemolisionWolf

Answer 3

good number, yep, not just round it so there arn't any decimal numbers

Answer 4

how do i round it to the nearest whole centimeter? @DemolisionWolf and how do i solve for the area?

Answer 5

rounding to the whole centimeter means no decimal numbers

so, to round, we look at the numbers in the decimal area, if it is 5 or greater, we make the number to it's left +1

lets begin:
42.076

6 is > than 5, so
7+1 = 8

42.08

8 is > 5, so
0+1 = 1

42.1

1 is < 5, so nothing
42

42 is the anwer

Answer 6

area = pi * r^2

Answer 7

r means radius right? @DemolisionWolf