Radius
What is the radius of a circle with a diameter of 88?
r=44
What is the diameter of a circle with a radius of 7?
D=16
What is the circumference of a circle with a radius of 0.68?
4.27
What is the area formula for circle?
Pi times radius squared
The diameter of a circle is 8 m.
Find the CIRCUMFERENCE in terms of pi.
C = 8pi
How do find the radius if you only are given the circumference?
Divide by pi (3.14) and 2
What is the diameter of a circle with the circumference of 7?
d= 2.23
How do find the circumference of a circle when you only have the diameter?
C= 3.14d
What is the area of a circle with a radius of 30 ft.
2826 ft2
The radius of a circle is 9 feet.
Find the AREA in terms of pi.
A = 81pi
c=678 what is the radius
108
What is the diameter of a circle that has the circumference of 120? Round to the nearest hundredth.
D= 38.22
The circumference of a circle is 29 and the radius is 7. True or False
False
The area of a circle with a 66in diameter is ___.
3,419.46 in2
The radius of a circle is 3 cm.
Find everything else. (diameter, area, circumference)
IN TERMS OF PI
d = 6 cm
A = 9pi
C = 6pi
Mary wanted to buy a placemat but the circumference has to be 65 cm. What is the radius of the required placemat?
r= 10.35
What is the diameter of a circle if the radius is 12345? No calculators!
24690
If the diameter of a circle is 5 what is the circumference?
15.7
What is the area of the base of an 8in cake pan?
50.24 in2
The radius of a circle is 2 cm.
Find everything else. (diameter, area, circumference)
IN TERMS OF PI
d = 4
A = 4pi
C = 4pi
use 3.14 for pi
c= 66 ft
d= ________
r= ________
d= 21.02
r=10.51
How do find the diameter when only the radius is given?
multiply the radius by 2
How do find the circumference if only the radius is given?
multiply the radius by 2 and 3.14
r x 2 x 3.14
DOUBLE JEOPARDY
What is the area of a circle with a circumference of 12.56yd?
The radius of a circle is 7 cm.
Find everything else. (diameter, area, circumference)
IN TERMS OF PI
d = 14 cm
A = 49pi
C = 14pi