In a circle, the internal vertical angles have a formula of

In this case, the formula would be:

We know that whole circle is 12x. And 12x is equal to 360°. When we put that into equation:


If x is 30°:

So, angle 7 is 90°.
Answer:
34
Step-by-step explanation:
12 divided by 10 is 1.2. 15 multiplied by 1.2 is 18 so x equals 18
Answer:23
Step-by-step explanation:
92/4