Help me pls will maerk brainliest

43.75 ft²

Step-by-step explanation:

Actual sizes

4/2 *5 = 10 feet

3.5/2 * 5 = 8.75 feet

Area

a = (1/2)bh

a = (1/2)(10)(8.75)

a = 43.75 ft²

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

b

step-by-step explanation: