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ki77a [65]
3 years ago
6

Find the perimeter of a square with area 64 cm/2

Mathematics
2 answers:
finlep [7]3 years ago
8 0
The answer is 32cm :))))))
disa [49]3 years ago
5 0

Answer:

Perimeter = 32 feet.

Step-by-step explanation:

Given  :  area 64 cm².

To find : find the perimeter of a square.

Solution : We have given

Area of square =  64 cm².

Area of square = side * sides = 64

side² = 64.

Taking square root both sides.

Side = \sqrt{64}.

Side =  \sqrt{8* 8}.

Side = 8 feet.

Perimeter= 4 * side.

Plug the value

Perimeter = 4 * 8

Perimeter = 32 feet.

Therefore, Perimeter = 32 feet.

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pav-90 [236]

Answer:

1. x = 7

2. x = -5

Step-by-step explanation:

1. Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation: 2*x+5*(6*x-9)-(179)=0

Pull out like factors  6x - 9  =   3 • (2x - 3)

 (2x +  15 • (2x - 3)) -  179  = 0

Pull out like factors: 32x - 224  =   32 • (x - 7)

Solve: x-7 = 0

Add  7  to both sides of the equation  = 7

2. Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation: -40-(6*x-5*(-4*x-18))=0

Pull out like factors: -4x - 18  =   -2 • (2x + 9)

 -40 -  (6x -  -10 • (2x + 9))  = 0

Pull out like factors:  -26x - 130  =   -26 • (x + 5)

-26 • (x + 5)  = 0

Solve: x+5 = 0

Subtract  5  from both sides of the equation: x = -5

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Thanks!

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Step-by-step explanation:

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The length of a rectangle is 8feet less than the width. The perimeter is 64 feet. Find the length and the width
nataly862011 [7]

Answer:

Length = 4 feet

Width = 4 feet

Step-by-step explanation:

The perimeter of a rectangle formula = 2L + 2W

Where L = Length

W = Width

The length of a rectangle is 8feet less than the width.

Hence,

L = 8 - W

The perimeter is 64 feet.

Hence,

64 = 2(8 - W) × 2W

64 =( 16 - 2W )2W

64 = -4W² + 32W

4W² - 32W + 64 = 0

Factorise

4W² - 16W - 16W + 64 = 0

4W (W - 4) - 16(W - 4) = 0

W - 4 = 0

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Solving for L

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Therefore,

Length = 4 feet

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3 years ago
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