Answer:
15
Step-by-step explanation:
 
        
             
        
        
        
Step-by-step explanation:
OI= 3.2 cm (same as OH)
To find GI, use Pythagoras Theorem (a²+b²= c²)
6.8²+3.2²= 56.48
√56.48= 7.5 cm
hope it helps! please mark me brainliest
thank you! have a good day ahead
if u follow me, i will follow u back
 
        
                    
             
        
        
        
Answer:
ok i guess...
Step-by-step explanation:
 
        
                    
             
        
        
        
SHDJJEHEH shdhshshshshduvuvuvububuyb
        
             
        
        
        
 Answer:
1.(b)
2.(b)
3. (d) 4cm
4.(a)
Explanation :
The polygons will have the same shape and size, but one may be a rotated, or be the mirror image of the other.Polygons are congruent when they have the same number of sides, and all corresponding sides and interior angles are congruent.