For #1
you would do 
8 + 8 + 5 + 5 = 26
so they use 26 inches of ribbon
for #2 
since there is 8 sides and each side is 3 feet we multiply 
8 x 3 = 24 
so the perimeter of her collage room is 24 feet
for #3
its cut off...
        
             
        
        
        
Answer:
Step-by-step explanation:
postulate : ASA
 Congruent statement : LON  = MNO
 
        
                    
             
        
        
        
Assume ladder length is 14 ft and that the top end of the ladder is 5 feet above the ground.
Find the distance the bottom of the ladder is from the base of the wall.
Picture a right triangle with hypotenuse 14 feet and that the side opposite the angle is h.  Then sin theta = h / 14, or theta = arcsin 5/14.  theta is
0.365 radian.  Then the dist. of the bot. of the lad. from the base of the wall is 
14cos theta = 14cos 0.365 rad = 13.08 feet.  This does not seem reasonable; the ladder would fall if it were already that close to the ground.
Ensure that y ou have copied this problem accurately from the original.
        
             
        
        
        
Answer:

Step-by-step explanation:
I did this bfor. You have got to trust me.