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
Trevor 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
The place value of the 4 in the approximation of pi that we use in class
Hundredths place
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
Gene’s frying pan is 14.5 inches in diameter. What is the circumference of his frying pan? (round to the nearest tenth place)
45.5 in
The state that Ms. Davis is from
Indiana
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
Brad 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
The number of degrees that make up a circle
360 degrees
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
Macy 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
One of the most popular stores in the United States which uses circles in its logo
Target
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
The circular fountain in front of the courthouse has a radius of 9.4 feet. What is the circumference of the fountain? Round to the nearest tenth.
59 ft
The alphabet that π ("pi") comes from
Greek alphabet