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Alina [70]
2 years ago
10

In JKL, mJ = 90, mK = 30, and mL = 60. Which of the following statements about JKL are true?

Mathematics
2 answers:
kumpel [21]2 years ago
8 0

The <em><u>correct answers</u></em> are:

KL = 2*JL; JK = (√3)JL; and JK = ((√3)/2)KL

Explanation:

This is a 30-60-90 right triangle.  This type of triangle has a special relationship among the sides.  Let the smallest side, across from the 30° angle, be t.  This means JL = t.

The hypotenuse of the triangle is two times the length of the smallest side; this means that KL = 2t, which means that KL = 2*JL.

The side of the triangle opposite the 60° angle will be the "medium sized" side; it is equal to √3 times the smallest side, or √3t; this gives us that JK = √3t = (√3)JL.

Comparing JK to KL, we have

\frac{t\sqrt{3}}{2t}

The t on top and bottom cancel out, leaving us with the ratio (√3)/2.  This means that JK = ((√3)/2)KL.

Llana [10]2 years ago
3 0
Jk=sqr3(JL)
KL-2(JL)
JK=(sqr3/2)KL
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Answer:

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3 years ago
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Answer:

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Now, we need to find the cost of 18 pounds of candy:

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