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Mathematics

2 answers:

Nataly [62]3 years ago

8 0

Answer:

The answer would be, 81cm.

Step-by-step explanation:

36÷4=9

9×9=81

DedPeter [7]3 years ago

5 0

ANSWER:
Perimeter of square=36cm
Therefore side of square=36/4
= 9 cm
Then area of square =s*s
=9cm*9cm
=81cm^2
HOPE IT HELPS!!!!!
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RoseWind [281]

Answer:

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Step-by-step explanation:

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2 years ago

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A square garden plot measures 180 square feet. A second square garden plot measures 320 square feet. How many more feet of fence

REY [17]

The second garden plot will require 8√5 feet more fence than the first garden plot.

Further explanation:

In order to find the fence, we have to find the perimeter of both squares

So,

Area of Square 1: A1=180 square feet

Area of Square 2: A2=320 Square feet

Let x be the side of square 1:

Then,

$A_1=x^2\\180=x^2\\Taking\ square\ root\ on\ both\ sides\\\sqrt{180}=\sqrt{x^2}\\x=\sqrt{2*2*3*3*5}\\x=\sqrt{2^2*3^2*5}\\x=2*3\sqrt{5}\\x=6\sqrt{5}$

For second square:

Let y be the side of second square

$A_2=y^2\\320=y^2\\Taking\ square\ root\ on\ both\ sides\\\sqrt{320}=\sqrt{y^2}\\y=\sqrt{2*2*2*2*2*2*5}\\y=\sqrt{2^2*2^2*2^2*5}\\y=2*2*2\sqrt{5}\\y=8\sqrt{5}$