Geometry B, Assignment 10. Circles: Circumference and PI
Which regular polygon with an apothem of 5 inches, will have a perimeter that is closest to the circumference of a circle with a diameter of 10.8 inches?
Octagon
Find the exact circumference of a circle with the given radius. 5 inches C =
10 π in.
Find the approximate value of the circumference of a circle with the given radius. Use = 3.14. Round your results to one more decimal than in the given radius. 4 inches C =
25.1 inches
Find the approximate value of the circumference of a circle with the given radius. Use = 3.14. Round your results to one more decimal than in the given radius. 4.6 inches C =
28.89 in.
Find the approximate value of the circumference of a circle with the given radius. Use = 3.14. Round your results to one more decimal than in the given radius. 6 ft. C =
37.7 feet
If the radius of a circle is doubled in length, the circumference of the circle is:
Doubled
Find the exact circumference of a circle with the given radius. x/2 miles C =
x π miles
Find the exact circumference of a circle with the given radius. 7 feet C =
14 π ft.
Find the value of the circumference of a circle with the given diameter. 3.21 ft. C =
3.21 π
Find the approximate value of the circumference of a circle with the given radius. Use = 3.14. Round your results to one more decimal than in the given radius. 5.1 cm C =
32.03 cm
Find the radius of a circle with the given circumference. 6√2 π in. r =
3√2 in.
Find the radius of a circle with the given circumference. 12π in. r =
6 inches
Find the exact circumference of a circle with the given radius. 3¼ inches C =
6.5 π in.
Find the exact circumference of a circle with the given radius. 3½ cm C =
7 π cm
Find the radius of a circle with the given circumference. 15π ft. r =
7.5 ft.
Find the exact circumference of a circle with the given radius. 36 inches C =
72 π in.
In the formula C = 2r , C stands for:
Circumference