Answer: the circles radius is 2
The equation for circumference of a circle is 2*pi*r
And the equation for the area of a circle is pi*r^2
The only way both of these equations can be true is if 2r(pi)=(pi)r^2
Or
2r=r^2
And when is the square of a number equal to two times the number? When the number is 2
So the radius must be 2
I'd say 13, hope this helps
Step-by-step explanation:
Yes
Step-by-step explanation:
As u can see in the diagram labelled 1-4 u can see 4 triangles ,
Answer:
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Step-by-step explanation:
Answer:
Option 'b' i.e. -11/20 is the correct option.
Thus,

Step-by-step explanation:
Given the expression

Determining the difference of the fractions

The Least Common Multiplier of 5, 4 is 20. Thus, adjust the fractions based on the L.C.M.

Apply the fraction rule: 

Add the number: 4-15 = -11

Apply the fraction rule: 

Please check the attached figure, where the pointing-down arrow is representing the correct answer which is -11/20.
Therefore, option 'b' i.e. -11/20 is the correct option.
Thus,
