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 length of an arc with a central angle of 90 degrees in a circle with circumference 4pi?
pi
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
Who is Ms. McDaniels' favorite singer?
Céline Dion
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 length of an arc with a central angle of 60 degrees in a circle with diameter 6?
60/360 * 6pi = 1/6 * 6pi = pi
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
For a free 100.....Who were the allies during World War II? (There are 4)
United Kingdom
United States
Soviet Union (Russia)
China
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 length of an arc with a central angle of 120 degrees in a circle with radius 4?
120 / 360 * 2(4)pi = 1/3 * 8pi = 8pi/3
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
Who's Ms. McDaniels' favorite SpongeBob character.
Squidward
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
An arc with central angle 90 degrees has a length of 10 pi. What is the circumference of the circle?
10pi = 90/360 * C = 1/4 C
C = 40pi
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
When is the first day of Spring?
March 20th.
The part of a circle described by a central angle
Arc
What is the circumference of a circle if:
the diameter = 11.8 yds? (round to nearest tenth)
37.1 yds
An arc with central angle 120 degrees has a length of 12pi. What is the diameter of the circle?
36
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
What is SpongeBob's actual name?
SpongeRobert