Answer:
Step-by-step explanation:
<u>The side of the square is w/2, then its area is:</u>
<u>The shaded area is the difference of areas of the rectangle and the square:</u>
<u>This can be simplified:</u>
- 56w - w² = 336
- w² - 56w + 336 = 0
Answer:
for 3, 4 or both?
4. is probably zero
Step-by-step explanation:
Wait is 4 a question?
Answer:
3 cans
Step-by-step explanation:
A = lw
a = 20 x 8 = 160
a = 40 x 8 = 320 
Together this is 480 
I would need 3 cans.