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ruslelena [56]
3 years ago
9

The width of a rectangle is half as long as the

Mathematics
2 answers:
zhannawk [14.2K]3 years ago
8 0

Answer:

20,10

Step-by-step explanation:

Dmitrij [34]3 years ago
4 0
Length=20ft
width=10ft
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Let the unknown side be "z" inches
Through pythagoras:
{12}^{2}  +  {z}^{2}  =  {20}^{2}
Because the square of the two sides add up to the square of the hypotenuse in a right triangle.

This means that
{z }^{2}  = {20}^{2}  -  {12}^{2}
{z}^{2}  = 400 - 144 = 256
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Hope this helped
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3 years ago
<img src="https://tex.z-dn.net/?f=7%5Csqrt%7B3%7D%20%2B%5Csqrt%7B63" id="TexFormula1" title="7\sqrt{3} +\sqrt{63" alt="7\sqrt{3}
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Answer:7√3 + 3√7

Step-by-step explanation:

7√3 + √63

=> 7√3 + √(7×9)

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=> 7√3 + 3√7

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