Radius
If the diameter is 50 feet, what is the RADIUS?
25 feet
If the radius is 30 yards, what is the DIAMETER?
60 yards
If the diameter is 10 feet, what is the CIRCUMFERENCE in terms of pi?
10pi feet
Find Area when Radius = 21 cm
Round to the nearest tenth.
1384.7 cm
Is the radius proportional to the diameter?
If yes, what is the COP?
If no, Why not?
YES
The COP is 2 or 1/2
If the circumference is 62.8 yards, what is the RADIUS as a decimal rounded to the nearest tenth?
10 yards
If the circumference is 86 mm, what is the DIAMETER rounded to the nearest tenth?
27.4 mm
If the diameter is 18 mm, what is the CIRCUMFERENCE rounded to the nearest tenth place?
56.5 mm
If the diameter is 9.1 mm, what is the AREA as a decimal rounded to the nearest tenth?
65 mm2
Is the radius proportional to the area?
If yes, what is the COP?
If no, why not?
NO
There is no COP, the equation has radius squared
If the circumference is 12pi feet, what is the RADIUS in terms of pi?
6 feet
If the area is 196pi cm2, what is the DIAMETER in terms of pi?
28 cm
If the radius is 3.7 in, what is the CIRCUMFERENCE as a decimal rounded to the nearest tenth?
23.2 in
What is the area of a circle with a diameter of 100 mm as a whole number?
7,850 mm2
Is the radius proportional to the circumference?
If yes, what is the COP?
If no, why not?
YES
The COP is 2pi
If the area is 225pi mm2, what is the RADIUS in terms of pi?
15 mm
If the area is 95 in2, what is the DIAMETER rounded to the nearest tenth?
11 in
If the area is 5.5 ft2, what is the CIRCUMFERENCE rounded to the nearest tenth?
8.3 ft
If the circumference is 48pi mm, what is the AREA in terms of pi?
576pi mm2
Is the diameter proportional to the circumference?
If yes, what is the COP?
If no, why not?
YES
The COP is pi (3.14)