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zlopas [31]
3 years ago
10

in a triangle two sides of the same length the ratio of each of these sides to the third side is 5:3 if the perimeter of the tri

angle is 65 in find the length of each side of the triangle.?​
Mathematics
1 answer:
AveGali [126]3 years ago
3 0

Answer:

Step-by-step explanation:

Perimeter of a triangle equals side 1 plus side 2 plus side 2

           P = s1 + s2 + s3                 side 1 = side 2 =  x

                                                     x/side 3 = 5 / 3

                                                     x  = (5/3) side 3

                                                     x (3/5)  = side 3

                                                 

                                                     perimeter = 65    slove for x

          65  = x + x + 3x/5

         325  = 5x + 5x + 3x

         325  = 13X

          25   = x    equal side 1 and side 2  

          side 3 = 25(3/5)  = 15

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Illusion [34]

<em><u>Complete Question:</u></em>

The rectangle below has an area of x^2-6x-7 square meters and a width of x-7 meters. What expression represents the length of the rectangle?

<em><u>Answer:</u></em>

<h3>The expression represents the length of the rectangle is (x + 1) meter</h3>

<em><u>Solution:</u></em>

Given that,

\text{Area of rectangle} = x^2 - 6x - 7 \\\\Width = x - 7

<em><u>TO FIND: LENGTH = ?</u></em>

We know that,

Area\ of\ rectangle = length \times width \\\\Therefore\\\\x^2 - 6x - 7 = length \times x - 7\\\\length = \frac{x^2 - 6x - 7 }{x - 7 }\\\\length = \frac{(x-7)(x + 1)}{x - 7}\\\\\text{cancel out x-7 from numerator and denominator} \\\\length = x + 1

Thus expression represents the length of the rectangle is (x + 1) meter

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3 years ago
15 cm <br> 15 cm <br> 16 cm <br> 20 cm <br> 57 cm <br> What is the area of the polygon?
NikAS [45]

Answer:

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Step-by-step explanation:

7 0
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Answer:

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Explanation:

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Step-by-step explanation:

5 0
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