An L-shaped concrete slab being prepared for the foundation of a new house is made up of two rectangles with dimensions 3 m by 2 m and 10 m by 6 m.
a) Find the total area of the concrete slab.
Total area = (3*2) + (10*6) = 66m^2
b) If two bags of cement are required for every 5 m^2 of concrete, how many whole bags of cement
will need to be purchased for the job?
I tried (66m^2 / 5) * 2, which gave 26.4, but answer says 14.
1 answer