Random
If the area is 8cm2, what is the radius?
Rounded it should be just 1cm.
You have a circular rug that is 1m by 1m. What is the circumference?
The circumference of the rug is 3.14m.
If I have a mug with a diameter of 2cm, what would be the area?
The mug would have an area of 3.14cm2.
What is the equation for calculating circumference?
C = 𝜋d
or
C = 2𝜋r
How many digits are there in pi?
There are infinite.
Here is a free 200pts. Just go and study for the test, and don't waste your time.
200pts, yay!
The circumference of a tree trunk is 41cm, what is the diameter?
The diameter would be around 13cm.
If the radius of a basketball is 14cm, what is the area?
The area is 615.44cm.
What is the equation for calculating area?
A = 𝜋r2
What does the number pi represent?
Pi is the number of times a diameter can fit in the circumference of a circle
I have 100cm2 of cookie dough, and my circular cookie cutter is 10cm by 10cm across, how many cookies can I make.
(Basically, you have to calculate the area of the cookie cutter shape, then multiply that by how many times you think it can make another cookie on the cookie dough sheet.)
Not counting extra space, you would have 7850cm2 of total area in the cookies. If you answered "you would have 100 cookies", you are also right, this is confusing.
I have a potted plant with a radius of 52.3mm. What is the circumference?
328.61mm
If the diameter is 39m, what is the area?
The area is 1193.985m2.
How do you calculate the diameter from the circumference?
You divide the circumference by pi to get the diameter.
how many digits of pi do you know?
3.141592653. If you got to 3.14 you passed.
I want to dig three holes, the holes each have diameters of 3.2m. What is the area of all three combined?
The combined area is 96.46m2.
If I have an art canvas that has a diameter of 50cm, what would the circumference be; plus 5mm of paint all around the outside of the circumference of the canvas.
The circumference of the canvas would be 160.14cm.
(Because the diameter would add not just 5mm on one side so the diameter would become 50.5, it would be all around, so then the diameter would be 51cm.)
If the moon has a diameter of 3475km, what is the area?
The area would be 9479365.62km2
How do you get the radius from the area?
You divide the area by pi, then get the square root of the answer you got.
What is a chord?
A chord is a line through the circle touching either side that is in any place but the diameter.
If I have a circle that has a circumference of 451m, what would be the radius in mm?
The radius would be 71810mm.
The distance from the sun is about 148.46 million km away. How long is the distance of the earth's orbit? (This is technically not a exact circle, just imagine it is.)
The earth's orbit is about 932.32million km around.
If the radius of the earth is 6380.57km, what is the area?
The earth's area is 127834785km2.
What is the formula for getting the circumference from the area?
The formula is:
2 √(𝜋/a)
What are all the products of circles you should know in 7th grade? Ex: Diameter and radius
There is diameter, radius, circumference, area, and chord.