Find the surface area.

196

Step-by-step explanation:

Surface are of 2 rectangles = 2(2*4) = 16

surface are of the base rectangle = 4*3 = 12

Area of tow triangles =2( * 2* 2)= 4

total = 16+12+4

= 196

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