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Tresset [83]
3 years ago
13

I have no clue how to do any of these problems so if anyone knows any an explanation would be nice.

Mathematics
1 answer:
Sever21 [200]3 years ago
7 0
#1).  The length of the whole circumference is (π · D) = 12π .

         120° is 1/3 of 360°, so arc-AB is 1/3 of the whole circumference.

#2).  60° is 1/6 of 360°.
         So arc-CD is 1/6 of the whole circumference (which is given).

#3).  The circumference of the circle is (π·D) = 20π .

         70° is (70°/360°) of the whole circle, so arc-XY
         is  (70/360) of the whole circumference.

#4).  Sorry, I don't remember anything right now about
         angles between chords. 
         I hope what I've given you so far is worth 5 points.
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A rose garden is formed by joining rectangle and a semicircle, as shown below. The rectangle is 29 ft long and 21 ft wide. If th
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Answer:

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Step-by-step explanation:

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Process

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Perimeter of the rectangle = 2(29) + 2(21) - 29

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