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Nadya [2.5K]
3 years ago
8

I need the steps to do it

Mathematics
2 answers:
konstantin123 [22]3 years ago
7 0
Http://www.mathportal.org/calculators/plane-geometry-calculators/right-triangle-calculator.php

www.mathportal.org/calculators/plane-geometry-calculators/right-triangle-calculator.php?val1=14&val4...

Result

<span>b=23.2999</span>

Explanation

To find side b we can use the definition: <span>tan(angle)=<span><span>opposite leg/</span><span>adjacent leg</span></span></span>

In this case we have:

<span>tan(α)=<span>ab</span></span>

After substituting <span>α=<span>31o</span></span> and <span>a=14</span> we have:

<span>tan(<span>31o</span>)=<span>14b</span></span> <span>b=<span>14<span>tan(<span>31o</span>)</span></span></span> <span>b=<span>140.6009</span></span> <span>b=23.2999</span>
Bezzdna [24]3 years ago
5 0

Have all the sides = 180°

Take the 2 known angles, 31° and 90°. 90° = Right angle

180° - 90° = 90°

90° - 31° = 59°

The angles are: 31°, 90°, 59°.

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