Question

please help me solve this problem please ​

Answer 1

Answer:

perimeter = 2(l+b) = 2 ( 5.25 + 3 ) = 2 (8.25) = 16.50 m

area = 5.25 x 3 = 15.75 m2

81 bricks/m2

so, no. of bricks = 81 x 15.75 = 1275.75