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natita [175]
3 years ago
7

10PTS PLEASE HELP!!!!!!!

Mathematics
1 answer:
Nostrana [21]3 years ago
6 0

The equation of a circle:

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

(h, k) - a coordinates of the center

r - a radius

A diameter d = 2r

We have

x^2+(y-2)^2=100\to r^2=100\to r=\sqrt{100}\to r=10

Answer: d = 2 · 10 = 20

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