Answer:
-3
Step-by-step explanation:
step one
step two
step 3
step bro
step person
step afganstan country
step on a bird
step
 
        
             
        
        
        
Answer:
D) 171 cm²
Step-by-step explanation:
You don’t actually need to decompose it.  You could just do it as a trapezoid:
(15+23)/2=19
19x9=171
If you want to decompose it into 2 triangles and a rectangle:
10=15x9=135
1/2(3)(9)=13.5
1/2(5)(9)=22.5
135+13.5+22.5=171 also
 
        
             
        
        
        
I would say complementary because the angle degrees are the same
        
             
        
        
        
Answer:
XY is 4 units.              
Step-by-step explanation:
We are given the following in the question:
Right triangle ABC is similar to triangle XYZ. 
AB = 20.8 units
BC = 36.4 units
YZ = 7 units
We have to find the length of side XY.
Since the given triangles are similar, they have the following property:
The ratio of corresponding sides of similar triangles are equal.
We can write,

Putting the given values, we have,

Thus, the length of XY is 4 units.