Question

If the equation of a circle is (x + 5)2 + (y - 7)2 = 36, its radius is
6
0
0

Answer 1

6

Explanation:

Radius of the given circle is 6 units.

Given equation of circle is:

`{(x + 5)}^(2) + {(y - 7)}^(2) = 36 \\ \: equating \: it \: with \\ {(x - h)}^(2) + {(y - k)}^(2) = {r}^(2) \\ {r}^(2) = 36 \\ \huge \red{ \boxed{r = 6 \: units}}`