3 years ago

What is the area of the circle ?

Mathematics

2 answers:

Sever21 [200]3 years ago

4 0

Answer:

πr² is the area of a circle

Gnesinka [82]3 years ago

3 0

I think it’s 2 if it helps..

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A circle has the equation x2 + (y−7)2 = 121. What is the length of the diameter of the circle?

Reika [66]

Answer:

Step-by-step explanation:

The standard form for an equation of a circle is $(x-h)^2+(y-k)^2=r^2$ , where h is the x coordinate of the center of the circle, k is the y coordinate, and r is the radius of the circle. Therefore, the radius of this circle squared is 121, meaning that the radius of the circle is 11. Since the diameter of a circle is twice the radius, the radius of this circle is 22. Hope this helps!