Question

I need to know how to find x

Answer 1

First calculate the diameter of circle.

`d=8+4=12`

Now we know that diameter is equal for any two points on the arc of a circle lying opposite to each other.

`12=x+4`

Now just simply solve for x.

`</p><p>12=x+4 \\</p><p>12-4=x+4-4 \\</p><p>\boxed{x=8} \\</p><p>`

Hope this helps.

r3t40