Answer:
The length of the third side of given triangle lies between 6.5 and 19.9.
Step-by-step explanation:
The law of cosine is as follows
---------------1
⇒ a and b are the given sides of the triangle and c is the third side, and
is the angle between a and b .
In equation 1 , the maximum and minimum values of
are 1 and -1.
so the value of c lies in between
⇒
and
= 
Given a=13.2 and b=6.7 so the the side lies in between |13.2-6.7| and |13.2+6.7|
so the third side lies between 6.5 and 19.9
#2 is 5
#3 is 18.9
#4 is 14.1
#14 is yes it does
Answer:


Step-by-step explanation:
Given the matrices


Calculating AB:

Multiply the rows of the first matrix by the columns of the second matrix


Hence,

Therefore,


Answer:
It could be AAA
Step-by-step explanation:
there are only angles and no sides that are labled