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Sonja [21]
3 years ago
10

Help its pre-pre

Mathematics
2 answers:
grin007 [14]3 years ago
8 0

Sum of all angles of a triangle = 180°

Let the third angle be x.

So, 18.6° + 113.4° + x = 180°

=> 132° + x = 180°

=> x = 180° - 132°

=> x = 48°

So, the third angle is 48°.

mamaluj [8]3 years ago
5 0
<h2>3rd Δ = 48°</h2>

Step-by-step explanation:

<h3><em>s</em><em>u</em><em>m</em><em> </em><em>o</em><em>f</em><em> </em><em>a</em><em>l</em><em>l</em><em> </em><em>Δ</em><em>a</em><em>n</em><em>g</em><em>l</em><em>e</em><em> </em><em>o</em><em>f</em><em> </em><em>a</em><em> </em><em>t</em><em>r</em><em>i</em><em>a</em><em>n</em><em>g</em><em>l</em><em>e</em><em> </em><em>=</em><em> </em><em>1</em><em>8</em><em>0</em><em>°</em></h3><h3><em>s</em><em>o</em><em>,</em><em> </em><em>l</em><em>e</em><em>t</em><em> </em><em>3</em><em>r</em><em>d</em><em> </em><em>a</em><em>n</em><em>g</em><em>l</em><em>e</em><em> </em><em>b</em><em>e</em><em> </em><em>x</em></h3><h3><em>1</em><em>8</em><em>.</em><em>6</em><em>°</em><em> </em><em>+</em><em> </em><em>1</em><em>1</em><em>3</em><em>.</em><em>4</em><em>°</em><em> </em><em>+</em><em> </em><em>x</em><em> </em><em>=</em><em> </em><em>1</em><em>8</em><em>0</em><em>°</em></h3><h3><em>1</em><em>3</em><em>2</em><em>°</em><em> </em><em>+</em><em> </em><em>x</em><em> </em><em>=</em><em> </em><em>1</em><em>8</em><em>0</em><em>°</em></h3><h3><em>x</em><em> </em><em>=</em><em> </em><em>1</em><em>8</em><em>0</em><em>°</em><em> </em><em>-</em><em> </em><em>1</em><em>3</em><em>2</em><em>°</em></h3><h3><em>x</em><em> </em><em>=</em><em> </em><em>4</em><em>8</em><em>°</em></h3>

<h2>MARK<em> </em>ME<em> </em>AS<em> </em>BRAINLIST</h2>
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