Respuesta :
A=bh and since the garden is 2 1/2 by 2 and the trench+garden= 3 1/2 by 3 the trench would be 1 by 1. So A=1x1 = 1
Answer:11/2 m sq
Step-by-step explanation:
Area of the garden =L•W
2 1/2•2=
5/2•2= 5 m sq
Area of the garden & trench =L•W
3 1/2•3 =
7/2•3 =
7•3/2=
21/2 m sq
21/2-5 =
21/2-10/2=
21-10/2=
11/2
The area of the trench is 11/2 m sq