Answer: - 8
Step-by-step explanation:
3+(−4)−8−(−1)
3 - 4 - 8 + 1
3 - 12 + 1
-9 + 1
- 8
Alright, lets get started.
If the polygon measures 45 degree exterior angle and we are asked to find number of sides, there is a formula for that.
= value of exterior angle
Where n is number of sides of ploygon

Multiplying n into both sides


Now divide 45 in both sides

n = 8
Means number of sides of polygon is 8, hence its Octagon. Answer
Now we have given 45 exterior angle hence interior angle would be
180 - 45 = 135°
So, sum of all interior angles would be = number of sides * interior angle
sum of all interior angles would be = 
Hence sum of all interior angles would be 1080°. Answer
Hope it will help :)
Answer:
length = 14 width = 10
Step-by-step explanation:
48/4=12
10+10+14+14=48