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Mariulka [41]
2 years ago
4

Need help please! The height of the equilateral triangle below is 15 units. What is the value of x?

Mathematics
2 answers:
UkoKoshka [18]2 years ago
8 0

Answer:

The answer is D

Step-by-step explanation:

edge

kumpel [21]2 years ago
5 0
The equilateral triangle may be splited into two congruent isosceles right triangles, each with height 15, and angles 30°-60°-90°.

Then you have this ratios:

tan (60) = height / [base of the equilateral triangle / 2] => base = 2*15 / tan(60) = 30/√3

sin (60) = height / hypothenuse => hypothenuse = height / sin(60) = 15 / [√3 / 2] = 30 / √3.

Same result of above which is right because the three sides are equals.

Then, side of the equilateral triangle is 30 / √3
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Answer:

3/48 or reduced 1/16

Step-by-step explanation:

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Reduced:

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Only put the reduced fraction if it asks.

Hope this helps :)

7 0
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Given:

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