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kow [346]
3 years ago
6

A regular hexagon has sides of 2 feet. What is the area of the hexagon?

Mathematics
2 answers:
il63 [147K]3 years ago
5 0

Trigonometry would help with this question.

The area of a regular hexagon is ((3√3)s^2)/2 where s is the side.

Plugging in 2 gives us 6√3 or 10.39 feet.

Triss [41]3 years ago
5 0

Look at the picture.

The longer diagonals of the hexagon divide it into 6 equilateral triangles.

Method 1.

Use the Pythagorean theorem to calculate the height of triangle:

a=2;\ \dfrac{a}{2}=\dfrac{2}{2}=1;\ h=?\\\\h^2+\left(\dfrac{a}{2}\right)^2=a^2\\\\h^2+1^2=2^2\\h^2+1=4\ \ \ |-1\\h^2=3\to h=\sqrt3

Calculate the area of the triangle:

A_\triangle=\dfrac{1}{2}\cdot2\cdot\sqrt3=\sqrt3\ ft^2

Calculate the area of the hexagon:

A=6A_\triangle\to A=6\cdot\sqrt3=6\sqrt3\ ft^2

Method 2:

Use the formula of the area of an equilateral triangle:

A_\triangle=\dfrac{a^2\sqrt3}{4}\to A_\triangle=\dfrac{2^2\sqrt3}{4}=\sqrt3\ ft^2

Calculate the area of the hexagon:

A=6A_\triangle\to A=6\cdot\sqrt3=6\sqrt3\ ft^2

Method 3.

Use the trigonometric function to calculate the height of a triangle:

\sin60^o=\dfrac{h}{a}\\\\\sin60^o=\dfrac{\sqrt3}{2}\\\\\dfrac{h}{2}=\dfrac{\sqrt3}{2}\ \ \ |\cdot2\\\\h=\sqrt3\\\\\vdots

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GIVE ME BRAINLIEST MY GUY PLZ

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b= -13

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5^2•3^-1•5^-3/3^4•5^-1•3^-3
puteri [66]
Assuming you want the expression to be simplified. 

We begin with the following: 

5^{2} * 3^{-1} * \frac{5^-3}{3^{4}} * 5^{-1} * 3^{-3}

Simplify the first part, 5^{2}. That is 25. Now we have this: 

25*3^{-1.5} * \frac{-3}{3^{4}} * 5^{-1} * 3^{-3} 

Next, simplify 3^{-1}, which is 1/3, and get this: 

25* 1/3 * \frac{-3}{3^{4}} * 5^{-1} * 3^{-3} 

The next part is \frac{5^-3}{3^{4}}. Simplify the denominator, 3^{4}, which is 81. Simplify the numerator, which is 1/125. Then divide 1/125 by 81, which we will keep as a fraction for simplicity's sake, but simplify it to \frac{1}{10125}. Now we have: 

25* 1/3 * \frac{1}{10125} * 5^{-1} * 3^{-3}

Now simplify 5^{-1}, which is 0.2, or 1/5. Now we have: 

25* 1/3 * \frac{1}{10125} * 0.2 * 3^{-3} 

Finally, simplify 3^{-3}. That is 1/27. We have: 

25* 1/3 * \frac{1}{10125} * 0.2 * 1/27

Lastly, multiply them all together! Now we are done, with the product of: 

\frac{1}{6075}

That certainly did take a while to type in all the LaTex, so I really hope that helped!

Note- if anything isn't working with the LaTex, just tell me and I'll fix it! (:
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Answer:

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Step-by-step explanation:

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