Answer:
541.17ft^2
Step-by-step explanation:
the total area of the garden is the sum of area of rectangle and half of area of circle
area of rectangle=(l)(h)=(23)(18)=414
area of semicircle=1/2pir^2
since r is half of h=1/2(18)=9
area of semicircle=1/2pi(9)^2=127.17
total area of garden=414+127.17=541.17 ft^2
