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oksian1 [2.3K]
3 years ago
8

Find the measure of the exterior 21. A. 15° B. 100 C. 35 D. 145

Mathematics
1 answer:
FromTheMoon [43]3 years ago
3 0

Answer:

The answer will be D. 145

Step-by-step explanation:

Because I said so

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ulia spends $3.25 on gas for her lawn mower. She earns $14.00 mowing her neighbor's yard. What is Julia's profit?
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Sara and Paul are on opposite sides of a building that a telephone pole fell on. The pole is leaning away from Paul at
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Answer:

a) See figure attached

b) x = \frac{sin(124)}{sin(34)} 80.086 = 118.732 ft

c) h = 35 sin (59) = 30.0 ft

So then the heigth for the building is approximately 30 ft

Step-by-step explanation:

Part a

We can see the figure attached is a illustration for the problem on this case.

Part b

For this case we can use the sin law to find the value of r first like this:

\frac{sin(22)}{35 ft} =\frac{sin(59)}{r}

r= \frac{sin(59)}{sin(22)} 35 ft = 80.086ft

Then we can use the same law in order to find the valueof x liek this:

\frac{sin(124)}{x ft} =\frac{sin(34)}{80.086}

x = \frac{sin(124)}{sin(34)} 80.086 = 118.732 ft

And that represent the distance between Sara and Paul.

Part c

For this cas we are interested on the height h on the figure attached. We can use the sine indentity in order to find it.

sin (59) = \frac{h}{35}

And if we solve for h we got:

h = 35 sin (59) = 30.0 ft

So then the heigth for the building is approximately 30 ft

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