Question

find the equation of the circle with centre at origin and radius 4​

Answer 1

Answer:

The equation of circle

Answer 2

The equation of the circle is x² +y² = 16

Step-by-step explanation:

The formula for the equation of a circle is (x – h)²+ (y – k)² = r²,

where (h, k) represents the coordinates of the center of the circle, and r represents the radius of the circle.

here r = 4

and (h,k ) = (0,0)

h= 0 , k=0

therefore ,

equation of the circle is

(x – h)²+ (y – k)² = r²

(x-0)²+ (y – 0)² = 4²

x² +y² = 16

hence ,

The equation of the circle is x² +y² = 16

#Learn more:

Two Circles which are not congruent touch externally . The Sum of their areas is 130π and distance between their centres is 14 .F ind the radii of the circles .

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