Question

Help pls !!
i’m confused and don’t understand

Answer 1

1) 30

All of the exterior angles add to 360. There are 12 values of X there. 360 ÷ 12=30

2) 51.4286

360 ÷ 7 (7 exterior angles) = 51.42...

3) 16.

All of the angles given equal 247 take this from 360 = 113. We need to add twelve 125 and subtract 13 = 112 divide this by 7 (there are seven values of X there) = 16

4) 30 sides

360 ÷ 12 = 30

5) 360 is not divisible by 12.5 so there can't be a whole number of sides.

Hope this helps :)

Answer 2

I'm not sure about the other answers, sorry.

1. x is equal to 30

Explanation:

3x° makes a right angle

A right angle is equal to 90°

90 divided by 3 is 30

x = 30°