+128399
I only have time for the first one
The nonagon will have 9 equal isosceles triangles .....with equal sides of 14m and and included angle of 40°
So....the total area =
9 (1/2) (14^2) sin (40) ≈ 566.9 m^2
+4116 Thank you for your time :) You've been really great help to me and i'm getting better with your step ways. I figure out the sec one it's B right?
+128399
This one is a little more difficult........
The length of one side = 90 / 15 = 6
The 15-gon will be comprised of 30 equal triangles.......the base = side/ 2 = 6/2 = 3m
And the height will be given by : 3/ tan (12° )
So......the total area =
30 (1/2) (3) ( 3/ tan 12° ) ≈ 635.1 m^2
Good job, NSS !!!!!!......looks like you're learning this stuff!!!
