Last minute geometry help me anyone. Please?

1.the measures of all angles in a regular octagon are (4x + 12)°. Find the value of x.

2.what is the sum of the exterior angles of a convex polygon?

3.the exterior angles of a triangle measure x°, (2x)°, and (3x)°. What is the value of x?

4.the exterior angles of an octagon are 42°, 55°, 39°, 20°, 62°, 45°, and 47°. What is the measure of the eighth exterior angle?

Answer #1

I tried and your right it is hard!! I give up!!

Answer #2

soz if I’m wasting your time but that is hard! try studying in books for tipz because I’m never gonna work that out-I’m on xmas hols, bye! p.s. good luck!

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