Answer:
I thinks its SAS
Step-by-step explanation:
SAS is Two sides and included agale of one triangle congruent to two sides 
 
        
             
        
        
        
Answer: Space was alloted for each subject is 8 dm, 8 dm, 12 dm.
Explanation:
Since we have given the length of bulletin board =28 dm
Let the share of three subject areas be 2x,2x,3x
 According to question, 

so x=4 dm
Now,
Space was alloted for each subject is given as below: 
First subject =
Second subject =
Third subject =
 
        
             
        
        
        
Answer:
3
Step-by-step explanation:
 
        
             
        
        
        
Answer:
54 teachers
Step-by-step explanation:
Step one:
given data
The ratio of teachers to students on a field trip to New York City is 2 to 9. 
That is the ratio is 2:9
 We are told that there are 243 students
Required
We want to find the number of teachers 
Step two:
Applying the part to part method we have
let the number of teachers be x
2/9= x/243
cross multiply we have
9x= 243*2
9x= 486
divide both sides by 9
x= 54
Hence there are 54 teachers
 
        
             
        
        
        
Answer:
10000 different numbers
Step-by-step explanation:
The numbers will have the form 1XXXX5, in this case, the order is important because 123465 is a different number to 123645. To know the total of differents decimal numbers, use the formula of permutation with repetition: 

 is the number of options,
 is the number of options,  , and
, and  the number of times you have to place a digit,
 the number of times you have to place a digit,  .
.
