Area
What is the formula to find the area of a rectangle?
Base x height.
What is the symbol for pi?
π
What is the radius half of?
The diameter.
What is the circumference?
The perimeter of the circle.
What is the diameter?
A line that goes from the outside of the circle, through the center, and to the other end of the circle. twice the radius.
What is area?
The amount of space on a 2D shape.
What are two things that you can find on a circle using pi?
The circumference area of a circle.
What is the radius?
A line that goes from the center of the circle to the outside.
True or False: you can use both the diameter or the radius to find circumference.
True.
What is the circumference of the circle if the diameter is 4?
12.56.
What is the area of the rectangle if the base is 10 and the height is 67.5 inches?
675 inches.
What are the first six digits of pi?
3.14159.
What formula do you use to find the radius of a circle from the circumference?
R = (C/Pi)/2.
What is the circumference if the radius of the circle is 5?
31.4.
What formula do you use to find the diameter of the circle from the circumference
D = C/Pi.
True or False: you can find the area of the circle from the circumference.
True:
1: (C/Pi)/2 = R
2: Pi(R^2) = A
True or False: Pi starts with 3.141529.
False.
What is the radius (round to nearest hundredth) of the circle if the circumference is 24?
3.82.
What is the circumference of the circle if the diameter is 33?
103.62.
What is the diameter (rounded to neared hundredth) of the circle if the circumference is 64.78?
20.63.
What is the area of the circle if the radius is 36.7 centimeters?
3846.5 centimeters.
What is (PI)(534.76) rounded to the nearest tenth?
1680.
What is the radius if the diameter is 7685736.5?
3842868.25.
What is the circumference of the circle if the radius of the circle is 72.3?
454.044.
What is the diameter if the radius is 5767.6?
11535.2.