Hello there!

On those type of angles, the angles that are facing each other is equal to another.
So you can set up the equation like this :

10x + 1 = 12x - 5
-2x = -6
x = 3

So the answer is x = 3.

In some problems, you have to find the angle.
Then you just simply substitute 3 into x.

10x + 1
10(3) + 1
30 + 1
31

12x - 5
12(3) - 5
36 - 5
31
The angles are 31° and 31°.

Hope this helped! :)

3 0

3 years ago

Please help is urgent

vazorg [7]

Answer:

x ≈ 7.2

Step-by-step explanation:

Given a tangent- secant from an external point to the circle, then

the the square of the measure of the tangent is equal to the product of the external part of the secant and the entire secant, that is

x² = 4(4 + 9) = 4 × 13 = 52 ( take the square root of both sides )

x = $\sqrt{52}$ ≈ 7.2 ( to the nearest tenth )

5 0

3 years ago