Exterior angle = 180 - 144 = 36 degrees
Number of sides = 360 / 36 = 10 sides (answer)
Answer:
1. No
2. 90 and 180
3. 9
4. 150 as consecutive angles
5. 73
6. x+x+2x+2x = 180
6x = 180
x = 30
7. 3x+2y+24=180
3x+2y +24=180
3x+2y=180-24
3×32 +2y= 156
y=60/2
y=30
when, y=24
3x+2y+24=180
3x+2×24-180-24
3x=-156-48
x=108/3
x=34.444
It will weigh 28.8 tons in the first 6 months.
2.3 tons per month times 6 months equals 13.8 tons plus 15 tons equals 28.8 tons.
Hope this helps. ;)