2023 UPDATED!!! What is the radius of a circle whose equation is (x – 7)2 + (y – 10)2 = 4? 2 units 4 units 8 units 16 units

THIS USER ASKED 👇

What is the radius of a circle whose equation is (x – 7)2 + (y – 10)2 = 4? 2 units 4 units 8 units 16 units

Answer

Find the radius of a circle whose equation is (x – 7) ² + (y – 10) ² = 4.

With proof

It is an equation of a circle

$(x - h) ^ {2} + (y - k) ^ {2} = r ^ {2}$

where the center is at the point (h, k).

and r is the radius of the circle.

Now the equation is given in question

(x – 7) ² + (y – 10) ² = 4

write it as

(x – 7) ² + (y – 10) ² = 2²

compare this equation with the equation of the circle

which we receive

r = 2 units

Thus the radius of a unit of a circle is 2 units.

Option (a) is correct.

Hence created