Answer:
58.8 in^2
Step-by-step explanation:
The area of triangle given two sides and included angle.
The original area of a face would be a^2. Now that you added b to the edge, the new area of each face would be (a+b)^2. To find how much the are increased, subtract a^2 from (a+b)^2. 
So the answer is b(2a+b)
We need to find the surface area and volume for each rectangular prism. Here are the formulas I'm going to plug each prism's measurements.
S.Area=2(lw+wh+lh)
Volume: lwh
Question 75:
Volume: 3×1×3=9 cm³
Surface Area= 2(3)+2(3)+2(9)=6+6+18=30 cm²
Question 76:
Volume: 6×2×5=60 ft.³
Surface Area: 2(12)+2(10)+2(30)=24+20+60=104 ft²
Question 77:
Volume: 4×2×6=48 m³
Surface Area: 2(8)+2(12)+2(24)=16+24+48=88 m²
The answer to your question is $1978
In math, "of" almost always means "times".
"The property" is 7/8 acre.
So "1/4 of the property" means "1/4 times 7/8 acre".
1/4 x 7/8 = (1 x 7) / (4 x 8)
That's 7/32 .
Mr. Lopez hasn't plowed up anything yet, but his plan is to plow up 7/32 acre for his garden.
