Answer:
= 45 cm^2
7 cm per ft^2
Step-by-step explanation:
The area of a trapezoid is found by
A = 1/2 (b1+b2)h
where b1 and b2 are the lengths of the bases and h is the height
A = 1/2(6+12)*5
A = 1/2 (18)5
= 45 cm^2
The unit rate is 28 cm/ 4 ft^2
7 cm per ft^2
