Find the distance travelled by Rama if she takes two rounds of a rectangular park whose length is 8 km and breadth is 12 km.

9514 1404 393

  80 km

Step-by-step explanation:

The perimeter is twice the sum of length and breadth:

  P = 2(length +breadth)

  P = 2(8 km +12 km) = 40 km

Twice around is then ...

  2 × 40 km = 80 km . . . . distance traveled by Rama

4.6875 pounds

step-by-step explanation:

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