Answer:
Concave octagon
Step-by-step explanation:
Concave octagon:
- This polygon has 8 sides. So it is a octagon.
- If one interior angle measures more than 180, then it is concave polygon.
So, this is a concave octagon
Answer:
the cylinder
Step-by-step explanation:
if you look at it the cylinder is the biggest and largest and take must of the space
So you make your equation 4x+20+40=180.
Add like terms and get 4x+60=180.
Subtract 60 from both sides, get 4x=120.
Divide boths sides by 4, get your answer of x=30.
Hope this helps
Answer:
-2
Step-by-step explanation:
-2m+15=45
-2m=45-15
-2m=30
2m=-30
m=-15
