If the circumference of a circle is 2pi, what is the area?
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Circumference of a circle= 2 * pi * r
Plug in what we know: 2pi = 2 * pi * r
Divide 2 pi to both sides: r = 1 (anything divided by itself is equal to 1)
Area = pi * r^2
Plug in what we know: A = pi * 1^2 A = pi * 1 ==> A = 1 pi
So the area is '1 pi' or just 'pi'.
The circumference of a circle is (pi) x (diameter).
The circumference of this circle is 2pi, so
2 pi = (pi) x (diameter).
So the diameter of this particular circle is 2, Its radius is 1/2 of the diameter, so radius = 1.
The reason we need to know the radius is because it's needed to find the area.
The area of any circle is (pi) x (radius squared). For this particular circle ...
Area = (pi) x (1 squared) = pi square units .
What does 4qt= to fl oz
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4 quarts are equal to 128 fl oz.
There is 32 fl oz in a quart. Since you have 4 quarts, you multiply 32 by 4 to get 128.
Hope this helps! :)
The sum of two prime numbers is 85. What is the product of these two prime numbers?
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Sum of two prime numbers = 8540+45=85Sum of two product numbers = 40*45=1800Hope I helped
I need help I will give u 100 00 points if you give me the correct answer
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the answer is 3/8 each or 6/8 together. To get the answer you have to figure out what is the remaining amount of wall from 2/8. There are 6/8 of the wall unpainted. If both people painted 1/2 then they each painted 3/8 of the remaining wall.
Someone plz help for all 3
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on question 36)..the answer is 4 hours....u r going to sub 225-85....then the answer ÷ by 35 ....then u have 4 hrs
Maxine spent 15 hours doing her homework last week. This week she spent 18 hours doing homework. She says that she spent 120% more time doing homework this week. Is she correct? Show your work to justify your decision
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The best way to solve this problem is to use the 'rule of three":
If 15% correspond to 100%
then 18% correspond to X%
We notice that both lines are in the following proportion: