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SVEN [57.7K]
4 years ago
14

A. Find the value of a. b. Find the value of the marked angles.

Mathematics
2 answers:
kap26 [50]4 years ago
8 0

Answer:

I agree. A is 15 degrees.

Galina-37 [17]4 years ago
3 0

Step-by-step explanation:

<em>We</em><em> </em><em>can </em><em>see </em><em>that </em><em>they </em><em>are </em><em>vertically </em><em>opposite </em><em>angles </em><em>so </em><em>they </em><em>are </em><em>equal</em><em>. </em><em> </em><em>then</em>

<em>6a </em><em>+</em><em> </em><em>1</em><em>0</em><em>°</em><em> </em><em>=</em><em> </em><em>3a </em><em>+</em><em> </em><em>5</em><em>5</em><em>°</em>

<em>6a </em><em>-</em><em> </em><em>3a </em><em>=</em><em> </em><em>5</em><em>5</em><em>°</em><em> </em><em>-</em><em> </em><em>1</em><em>0</em><em>°</em>

<em>3a </em><em>=</em><em> </em><em>4</em><em>5</em><em>°</em>

<em>Therefore </em><em>a </em><em>=</em><em> </em><em>1</em><em>5</em><em>°</em>

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