Question

Help will medal

Answer 1

Compare angle XYV to angle WYZ. What can you tell me about them?

Answer 2

Umm congruence?

Answer 3

Yes.
Give me a minute, I am relearning this myself.

Answer 4

Okay thanks

Answer 5

OK, no easy way to explain, but I have to try before we get to the solution

Answer 6

Okay

Answer 7

That should have been in your book or lesson before you got to this problem. The takeaway is the last equation. <XYZ = <VYW = the average of the _intercepted_ arcs = 1/2( arcXZ + arcVW).

And you should be able to get ( arcXZ + arcVW), right?

Answer 8

Right

Answer 9

What do you get for the sum of the blue arcs, and then what do you get for the sum of the red arcs?

Answer 10

@zarkam21 , did this help?

Answer 11

Ni what is the sum

Answer 12

216?

Answer 13

'Sum' = 'add' = +

What part of the circle do you need to know, so you can use the formula I gave you. Do you need the red part or the blue part?

Answer 14

OH. SORRY! Yes, 216!!! so what is the red part, the part you need?

Answer 15

360-216

Answer 16

@zarkam21 Yes, so find ((360-216)/2 and that is the measure of <XYZ.

Any last questions?

Answer 17

I will post it

Answer 18

72

Answer 19

Well done.