Vocabulary
Name the collection of points equidistant from a point called the center
Circle
What is the circumference of a circle if:
the diameter = 14 yds?
43.96 yd
What is the circumference of a circle if:
the radius = 2 in (round to nearest tenth)
12.6 in
Carter needs a new bicycle tire. His tire has a circumference of about 112 inches. What is the diameter of his tire? (round to the nearest tenth place)
35.7 in
What is the area of the circle, with a radius of 1?
3.14
Name the line segment that cuts a circle in half
Diameter
What is the circumference of a circle if:
the diameter = 18 yds?
56.52 yds
What is the circumference of a circle if:
the radius = 12 in (round to nearest tenth)
75.4 in
Kalehua's lei is 14.5 inches in diameter. What is the circumference of her lei? (round to the nearest tenth place)
45.5 in
what is the area of a circle with the radius of 2 in?
12.56 sq in
What do you call half of the diameter?
radius
What is the circumference of a circle if:
the diameter = 16.8 yds? (round to nearest tenth)
52.8 yds
What is the circumference of a circle if:
the radius = 7 in (round to nearest tenth)
44 in
Charlie uses 31.4 meters of plastic edging to create the border of a circular flower garden in his yard. How far is it from the center of the garden to the edge?
5 m
What is the area of a circle with the diameter of 2 cm?
3.14 cm2
The outside measurement of a circle (Hint: similar to perimeter)
Circumference
What is the circumference of a circle if:
the diameter = 14.8 yds? (round to nearest tenth)
46.5 yds
What is the circumference of a circle if:
the radius = 8.4 in (round to nearest tenth)
52.8 in
Max measures a truck’s tire mark for one complete revolution as 120.48 inches long. What is the diameter of the tire? (round to the nearest tenth place)
38.4 in
Area of a circle with the diameter of 1 yd.
Do not round.
0.785 sq yd.
The measurement of the inside of a circle
Area
What is the circumference of a circle if:
the diameter = 11.8 yds? (round to nearest tenth)
37.1 yds
What is the circumference of a circle if:
the radius = 11.7 in (round to nearest tenth)
73.5 in
Paisley built a water fountain with a radius of 9.4 feet. What is the circumference of the fountain? Round to the nearest tenth.
59 ft
What is the area of a circle with the diameter of 10.6 mm?
88.2 mm2