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Mumz [18]
3 years ago
10

If the area of a circle is 16pi what is the circumference of the circle, circle b, if its radius is 1/2 that of the circle a

Mathematics
1 answer:
Natasha2012 [34]3 years ago
5 0
First find the radius of circle A. You know that the equation is r^2*pi, so just divide both by pi.
r^2*pi=16pi
/pi          /pi
r^2=16
R is 4. That means that circle B is 2, since its radius is half that of circle A.
C=pi2r
C=pi2(2)
C=pi4
C=4pi
The answer is 4pi.
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Answer:

The answer is 20 degrees

Step-by-step explanation:

A trapezoid is a quadrilateral with four angles and the sum of the four angles is 360 degrees.

Britton rotated the trapezoid ABCD 180º, but we were not told that he tampered with the angles size or shape, we can now agree that it is still the same trapezoid that was rotated without any alterations in angles, size and shape.

Since we've been given that the angle B is 20º, and the measurement was not altered when rotating the trapezoid. Therefore the angle B' will also be 20º.

I hope this helps.

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3 years ago
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Answer : 1

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A home store donated a percent of everybody sale to charity. The total sales were $6,550 so the store donated $393. What percent
Andrej [43]

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6%

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3 years ago
I WILL MARK CROWN JUST NEED HELP ON THIS MAKE SURE RIGHT ANSWER
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3 years ago
four time the first of three consecutive integers is six more than the product of two and the third integer. find the integers.
maw [93]
<span>
Assign variables : 
Let x = first consecutive even 
Let x + 2 = second consecutive even
Let x + 4 = third consecutive even 
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3 years ago
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