(a)
To find: The centre, the radius, the diameter, the circumference and the area of the
(a)

Answer to Problem 3PSA
The centre of the circle is at
Explanation of Solution
Given:
The given equation is
Calculation:
Consider the formula for the equation of the circle is of the form as,
Here,
Consider the given equation of the circle is,
From the given equation and the general equation the centre of the circle is,
The radius of the circle is,
The diameter of the circle is,
The circumference of the circle is,
The area of the circle is obtained as,
Thus, the centre of the circle is at
(b)
To find: The centre, the radius, the diameter, the circumference and the area of the circle for the given equation.
(b)

Answer to Problem 3PSA
The centre of the circle is at
Explanation of Solution
Given:
The given equation is
Calculation:
Consider the formula for the equation of the circle is of the form as,
Here,
Consider the given equation of the circle is,
From the given equation and the general equation the centre of the circle is,
The radius of the circle is,
The diameter of the circle is,
The circumference of the circle is,
The area of the circle is obtained as,
Thus, the centre of the circle is at
(c)
To find: The centre, the radius, the diameter, the circumference and the area of the circle for the given equation.
(c)

Answer to Problem 3PSA
The centre of the circle is at
Explanation of Solution
Given:
The given equation is
Calculation:
Consider the formula for the equation of the circle is of the form as,
Here,
Consider the given equation of the circle is,
From the given equation and the general equation the centre of the circle is,
The radius of the circle is,
The diameter of the circle is,
The circumference of the circle is,
The area of the circle is obtained as,
Thus, the centre of the circle is at
(d)
To find: The centre, the radius, the diameter, the circumference and the area of the circle for the given equation.
(d)

Answer to Problem 3PSA
The centre of the circle is at
Explanation of Solution
Given:
The given equation is
Calculation:
Consider the formula for the equation of the circle is of the form as,
Here,
Consider the given equation of the circle is,
From the given equation and the general equation the centre of the circle is,
The radius of the circle is,
The diameter of the circle is,
The circumference of the circle is,
The area of the circle is obtained as,
Thus, the centre of the circle is at
Chapter 13 Solutions
Geometry For Enjoyment And Challenge
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