Question

http://img1.mnimgs.com/img/curr/1/8/5/66/3121/Chapter%203_html_6f0a2bb1.jpg


Find x

@Justin9529

Answer 1

Show calculation

Answer 2

Answer: Angle sum of pentagon

(n-2)180°

= (5-2)180°

=3 X 180° = 540°

Hence, measurement of 1 angle of a pentagon

= 540°/5 = 108°

e. x + y + z = ?

Answer 3

ignore the very last part

Answer 4

Each triangle has 180 degrees. Subtract out the 360 degrees of the circle. Divide by the number of sides. I hope that makes sense what I've said.

Answer 5

How did it came (n-2)180° ?

@Justin9529

Answer 6

http://www.excellup.com/ClassEight/matheight/quadrilateralexone.aspx

Answer 7

go to that url and im pretty sure that might be your paper