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vekshin1
3 years ago
15

Find the dimensions of a rectangle whose perimeter is 18 meters and whose area is 20 square meters.

Mathematics
1 answer:
Andru [333]3 years ago
8 0
Call the length L and there width W. then perimeter is 2L+2W=18. area is LW=20.

2L+2W=18
L+W=9
LW=20
L=9-W
(9-W)W=20
W²-9W+20=0
(W-5)(W-4)=0
W=4,5

rectangle is 4by5
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Hello everyone

Are you guys talking about the Lesson 10: Surface Area and Volume Unit Test unit 6: Surface Area and Volume test, i have the answers right here for all of you:

1) 17

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If you guys need help with anything else please feel free to ask !!!!, trust me those answer are all correct, if you have the same test as me, and same answers, like i put, those answers  will help you !.

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