Answer:
135°
Step-by-step explanation:
formula = (n-2) * 180, whereby 'n' is the number of sides.
therefore, (8-2) * 180 = 1080°
1080° ÷ number of sides
= 1080° ÷ 8
= 135°
 
        
                    
             
        
        
        
Answer:
1, yes add one, 2, no, 3, yes, you add 10. 4, no, 5, yes, you add 2.
Step-by-step explanation:
1 add one, 3 add 10 5 add 2.
Your welcome :)
 
        
             
        
        
        
Answer:
IM GOING TO GUESS B
Step-by-step explanation:
I GUESSED !
 
        
             
        
        
        
Answer:
25% 
Step-by-step explanation:
28-21=7
7/28=×/100
7×100=700
700÷28=25
 
        
                    
             
        
        
        
Any rhombus is a parallelogram, but not the other way around. If you were to make a Venn Diagram, the "rhombus" portion is entirely inside the set of "parallelograms".
The same can be said about rectangles as well. Any rectangle is a parallelogram, but not the other way around. 
If we overlapped the region of rectangles and rhombuses, then we form the region for squares. A square is a combination of a rhombus and a rectangle. 
Any square has all four sides the same length (property of a rhombus) and all angles equal to 90 (property of a rectangle). Since a square inherits properties of a rectangle and rhombus, it automatically makes any square a parallelogram.
Check out the venn diagram below.