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3 years ago

What is the value of y? Show work

Mathematics

2 answers:

Zinaida [17]3 years ago

8 0

Answer:

Sum of the angles of the triangle is 180°.

=> 39° + 4y + y + 11° = 180°

=> 5y + 50° = 180°

=> 5y = 180° - 50°

=> 5y = 130°

=> y = 130°/5

romanna [79]3 years ago

7 0

Answer:

Sum of the interior angles of the triangle is 180°.

According to the above problem,

$4y + (y + 11) + 39 = 180 \\ 5y + 50 = 180 \\ 5y = 130 \\ y = \frac{130}{5} \\ \boxed{y = 26}✓$

<h3>y=26° is the right answer.</h3>

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2. Vertex: (3,5)

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