Vocab
The center of the circle?
Center Point
What is the radius of a circle that has a diameter of 12 inches?
6 inches
What is the diameter of a circle that has a radius of 10
20
The diameter is 10 inches. What is the circumference?
10pi or about 30
The radius is 4 inches. What is the area of the circle?
16pi in or about 48in
What number is pi ?
3.14
If a circles diameter is 18in what is the radius
9in
If a circle has a radius of 45.what is the diameter
90
The diameter is 42 centimeters long what’s the circumference
42 pi Centimeters or about 126 cm
If the radius is 12 what is the area?
144pi or about 432
What does the diameter go through ?
arc to center to arc
If a circles diameter is 120cm what is the radius?
60cm
If a circles radius is 25.42. What is the diameter?
50.84
Angelica says the circumference is 294.36 The problem was (if the diameter is 98.12 What is the circumference?) is she correct?
Yes, she is correct
If the radius of a circle is 14.5 .what is the area?
210.25pi or about 630.75
What do you need for circumference?
Diameter X pi
If the diameter of a circle is 50.2 in what’s the radius?
25.1 in
If a circles radius was 12.7cm what is the diameter
25.4cm
If a circles diameter is 412 meters long what’s the circumference?
412 pi meters long or about 1,236 m
Estella says the area of her friend’s circle is 468.75cm ms Lori says the area of the circle isbout 75 Who’s right this is the problem (the radius is 12.5)
Estella is right
What is another word for circumference?
Perimeter
If the circumference is 159m what is the radius?
26.5m
If a circles circumference is 366, what is the diameter
122
If the radius is 6 what is the circumference
12pi or about 36
The diameter of a circle is 85.96 what is the area?
1847.28pi or about 5,541.84