Answer:
Step-by-step explanation:
THANKS 4 POINTS!!!!!!!
Answer:
28
Step-by-step explanation:
Then answer would be
90° < 0 < 180°.
hope it helps!
Width=w
length=(40-2w)/2=20-w
A=w(40-w)
A=40w-w²
A'=40-2w=0
2w=40
w=20
20x20 is the size of the pen having the greatest area. this tells us the largest rectangle for a given perimeter is a square
refer to the attachment hope it helps you :)