Question

X= 4 6 12 help please

Answer 1

12

Explanation:

Lets c = chord inside circle

3(3 + c) = 6^2

9 + 3c = 36

3c = 27

c = 9

x = 3 + 9

x = 12

Answer 2

The answer is x=12

Explanation:

In order to determine the "x" value, we have to know about the tangent to a circle.

The line that joins two infinitely close points from a point on the circle is a Tangent. It means, the lines that intersect the circles exactly in one single point are tangents.

I have attached an image that shows a tangent to a circle. Also there is a formula that relates the segments of the circle.

According to the same notation of the image:

`PS^2=PQ*PR`

In this case:

`PS=6\\PQ=3\\PR=x\\6^2=3*x\\x=(36)/(3)=12`

Finally the answer is x=12