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Crank
3 years ago
7

How to find the area of a regular polygon with only the apothem ?

Mathematics
2 answers:
Ymorist [56]3 years ago
8 0
Hopefully this sounds smart...<span>If the drawing of your octagon (or whatever) has been separated into triangles, and one triangle's </span>area<span> is labeled, then you do not need to know the apothem. Just take the </span>area<span> of that one triangle, and multiply by the number of sides in the original</span>polygon<span>.</span>
love history [14]3 years ago
6 0
Find<span> the length of the sides plus the the</span>apothem<span>. Solution: Plug in what you know into both the </span>area<span> and the perimeter formulas to solve for the length of a side and the </span>apothem<span>.</span>
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1. 8<br> 2. 20<br> 3. 28<br> 4. 32
Airida [17]

Answer:

4. 32

Step-by-step explanation:

Note that the two shapes are congruent. RS ≅ LM  & LM = 32 ∴ RS = 32

4. 32 is your answer.

~

8 0
3 years ago
If f(x)=-3x-1, find f(-5)<br>a)16<br>b)15<br>c)-16<br>d)14​
Anuta_ua [19.1K]

Answer:

D) 14

Step-by-step explanation:

f(x) = -3x - 1

f(-5) = -3(-5) - 1

f(-5) = 15 - 1

f(-5) = 14

D) 14

4 0
3 years ago
Draw the image of \triangle ABC△ABCtriangle, A, B, C under a dilation whose center is PPP and scale factor is \dfrac{1}{3} 3 1 ​
zavuch27 [327]

Dilating the triangle ABC would create another triangle whose size is different from the triangle ABC

<h3>How to dilate the triangle?</h3>

From the complete question, we have the following coordinates:

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  • Point B = (7,-7)
  • Point C = (-2,2)
  • Point P = (1,-4)
  • Scale factor, k = 1/3

The dilation rule across the center P is:

(x, y) --> (1/3x – 1, 1/3y + 4)

So, the coordinates of the image of the triangle are:

A' =  (-1/3 * 4 – 1, 1/3 * 5 + 4)

A' =  (-7/3, 17/3)

B' =  (1/3 * 7 – 1, -1/3 * 7 + 4)

B' =  (4/3, 5/3)

C' =  (-1/3 * 2 – 1, 1/3 * 2 + 4)

C' =  (-5/3, 14/3)

From the above computation, the coordinates of the new triangle is:

A' =  (-7/3, 17/3)

B' =  (4/3, 5/3)

C' =  (-5/3, 14/3)

See attachment for the image of triangle ABC

Read more about dilation at:

brainly.com/question/16752437

8 0
2 years ago
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UNO [17]
Based on your plot points, the best answer seems to be B) $5.00 

5 0
3 years ago
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