What is the area of this figure?

drag and drop the appropriate number into the box.
a)112 b)142 c)270 d)284

Drag and drop the appropriate number into the box.

a)112  

b)142

c)270

d)284

Step-by-step explanation:

Split the most upper rectangle 1 x 4 =4

Then the middle , (5+1) x (15-4)=66

Then the bottom, (15-5-4) x (18-1-5)=72

So 72+66+4=142

ab: 2 n83b8eb7ebi. 8e yen in

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