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IRINA_888 [86]
3 years ago
5

The equation of a circle is ​ (x−11)2+(y+15)2=144 ​ .

Mathematics
2 answers:
just olya [345]3 years ago
5 0

Answer:  The radius of the circle is 12 units.

Step-by-step explanation:  The given equation of a circle is as follows :

(x-11)^2+(y+15)^2=144~~~~~~~~~~~~~~~~~~~~~~~~~~(i)

We are to find he radius of the circle.

We know that

the standard form of the equation of a circle with center at the point (h, k) and radius r units is given by

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

From equation (i), we have

(x-11)^2+(y+15)^2=144\\\\\Rightarrow (x-11)^2+(y-(-15))^2=12^2.

Comparing the above equation with the standard form, we get

radius, r = 12 units.

Thu, the radius of the circle is 12 units.

garri49 [273]3 years ago
4 0
The circle's radius is 12
because 144=r^2 and the square root of 144 is 12
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