Area
If the radius of a circle is 3, what is the area?
28.3
If the radius is 4, what is the diameter?
8
if the diameter is 25, what is the radius?
12.5
Who was born on March 14th? (pi day)
Albert Einstein
If the diameter of a circle is 16, what is the area?
200.9
If the area is 43.96, what is the diameter?
7.5
if the diameter is 92, what is the radius?
46
What type of number is Pi?
Irrational
If the radius of a circle is 14, what is the area?
615.4
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if the area is 94.2, what is the radius
5.5
Is pie, the pastry, purposely named that because it is a circular shape which correlates to Pi, the number?
No, it is a tasty coincidence!
True or False: If the radius is 5, the Area would be 31.4.
False, the answer would be 78.5
True or False: You have to make the radius to the power of 2 to find the diameter.
(ex: 4^2 = 16)
False, you only have to multiply the radius by 2.
(ex: 4x2 = 8)
What is the formula to find the radius of a circle when given the area?
step 1:Divide the area by Pi
step 2:square root the answer from step 1
√(A ⁄ Pi)
how many didgets are in Pi?
infinite
True or False: If the diameter of a circle is 3.14, then the area is 3.14.
False, the area would be 7.7.
If the area is 15.7, then what is half of the diameter?
The diameter is 4.4, so half of it is 2.2.
If the diameter is 17 FEET, what is the radius in INCHES?
102 in.
Fill in the blank: 3.141_92635
5