Question
In the xy - plane, the graph of is a circle. What is the radius of the circle?
- 5
- 6.5
Hint:
Hint:
- For the circle, , radius will be .
The correct answer is: 5
Explanation:
- We have given the equation of circle
- We have to find the radius of the given circle.
- We will first compare the given equation with standard equation
and then apply the formula of radius
Step 1 of 2:
We have given circle .
Now convert this equation in standard form by making coefficient of x2, y2 as 1
So, Divide whole equation by 2.
So, the equation will be
Step 2 of 2:
On comparing with standard equation, .
So,
So, The radius will be
r = 5
Option (A) is correct.
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