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seraphim [82]
3 years ago
12

John is skiing on a mountain with an altitude of 1200 feet. The angle of depression is 21 About how far does

Mathematics
1 answer:
Agata [3.3K]3 years ago
7 0

Answer:

John ski down the mountain is 1285.37 feet.

Step-by-step explanation:

Given : John is skiing on a mountain with an altitude of 1200 feet. The angle of depression is 21.

To find : About how far does  John ski down the mountain ?

Solution :

We draw a rough image of the question for easier understanding.

Refer the attached figure below.

According to question,

Let AB be the height of mountain i.e. AB=1200 feet

The angle of depression is 21 i.e. \theta=21^\circ

We have to find how far does  John ski down the mountain i.e. AC = ?

Using trigonometric,

\cos\theta = \frac{AB}{AC}

\cos(21)= \frac{1200}{AC}

AC=\frac{1200}{\cos(21)}

AC=1285.37

Therefore, John ski down the mountain is 1285.37 feet.

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Given:

The triangle ABC is reflected over the x-axis.

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Round 479.16 to the nearest tenths
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The digit after the tenths place is "6", which is greater than 5. Thus, the "1" is rounded up to a "2"

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