Answer:
Step-by-step explanation:
See comment for complete question
Given:
Required
The information that shows 
by SSS
By SSS implies that, the three sides of both triangles are congruent
Already, we have:
The third side of 
is 
The third side of 
is 
So, for both to be congruent by SSS, the third sides must be congruent
i.e.
1199.3 (I'm assuming you mean round to the nearest tenth)
1. Y=X-4
2. Y=X*4
3. Y=X+3
4. Y=X/6
Answer:
△ABC∼△EDF
Step-by-step explanation:
Answer:
Mean age = 1271.27
Step-by-step explanation:
No of children = 77
The age at which children first began to combine words = 16.51 months
Mean age = No of children × age at which children first began to combine words
= 77 × 16.51
= 1271.27
Mean age = 1271.27
