Pls help me with this
2 answers:
Answer:
The answer is C at 8.1.
Step-by-step explanation:
To find , start by finding the two consecutive perfect squares that 66 lies between them. The two perfect squares are 64 (
) and 81 (
). So, the whole number part of the square root of 66 will be 8.
Now, for the decimal part, use the following formula:
(Given number - Smaller perfect square) / (Greater perfect square - Smaller perfect square)
Then, put in the known information, which will look like:
(66 - 64)/(81 - 64) = 2/17 = 0.117
Finally, is 8.117, so the answer is C at 8.1.
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Therefore, the equation of circle is:
- All points in a plane that are at a specific distance from a specific point, the center, form a circle. In other words, it is the curve that a moving point in a plane draws to keep its distance from a specific point constant.
- The radius of a circle is the separation between any point on the circle and its center.
- The radius must typically be a positive integer. Except when otherwise specified, this article discusses circles in Euclidean geometry, namely the Euclidean plane.
- A circle, specifically, is a straightforward closed curve that separates the plane into its inner and exterior.
Here we know thatbut we are not given the radius.
However, we can find the radius by using the distance formula.
, where
and
Putting the values, we get:
The radius comes out to be:
An equation of the circle with center and radius r is
Now, substituting the values, we get:
Therefore, the equation of circle is:
Know more about circles with the help of the given link:
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