Hi guys! I have another question... Can you help? Will give 15 pts 2 screenshots below same problem. 1 of them is the problem and the other one is abt the rules.

It is SSS

You already have the two sides, and you can see the two triangles share a common line. Therefore you know the unknown is a side.

solution:

→c= a b , that is product of a and b is possible only when when a is m × n matrix and b is n × p matrix.

that is, number of columns of a= number of rows of b.

so, size of matrix , c= a b is , if a = (m × n)matrix

b= (n × p)matrix

then a b = [ (m × n)matrix] ×[   (n × p)matrix ]

→→c= a b= [m × p ] matrix

→→size of product a b will be equal to = number of rows of a × number of columns of b

your question is incomplete, write all the numbers in the sequence that it tells you.  

step-by-step explanation: