What's the diameter?
What is the formula?
Find the Circumference
Find the Area
Vocabulary
100
the radius is 13 inches, what is the diameter?
26 inches.
100
Fill in the blanks: d= ___ r
d= 2 r
100
A car wheel has a diameter of 14 inches, What is the length around the wheel?
43.96
100
Fill in the blanks: r= 4 inches A:______
50.24 inches squared
100
What is the definition of circumference?
the distance around the circle (the lenght around) or perimeter of a circle
200
the radius is 26 feet, what is the diameter?
52 feet
200
Fill in the Blanks: r = ____ d
1/2
200
A circle has a diameter of 15 feet, What is the circumference of the circle?
47.1 feet
200
The diameter is 14 feet, what is the area of the circle?
153.86 feet squared
200
What is the definition of a diameter?
A chord that goes through the center of a circle
300
The circumference of a circle is 18.84 centimeters, What is the diameter?
diameter is 6
300
What do you get when you divide circumference by pi?
diameter
300
Fill in the blanks: r: 6 inches C:______
37.68 inches
300
A hubcap has a radius of 16 centimeters. What is the area of the hubcap?
803.84 centimeters squared
300
What is the radius of a circle?
a line segment that starts from the center of the circle to the edge of the circle.
400
The circumference of a circle is 87.92 inches, what is the diameter?
diameter= 28 inches
400
What is the formula for an area of a circle?
A= pi r(squared)
400
If the radius of a circle window is 14 inches, What is the circumference?
87.92 inches
400
A clock face has a radius of 13 inches. What is the area of the clock face?
530.66 inches squared
400

What do we do if a problem requires the radius measurement but we are given the diameter instead?

What is dividing the diameter by 2?

500
The circumference of a circle is 310.86 cm. What is the diameter?
diameter=99 cm
500
What is the circumference formula
Circumference formula: C= pi X d
500
the radius is 46 inches, What is the circumference?
288.88 inches
500

If a bicycle tire has a diameter of 18 inches, what is its area?

What is 254.34?

500
What is the definition of a circle?
A set of points on a flat surface with every point equal distance from the center
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