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14 votes
14 votes
Someone please help me i dont understand this

What is the value of y ?
A. 30
B. 40
C. 120
D. 60

Someone please help me i dont understand this What is the value of y ? A. 30 B. 40 C-example-1
User Excelguy
by
3.1k points

2 Answers

17 votes
17 votes

Answer:

The answer is D.

Explanation:

Lets make an equation for this. Remember, that the sum of the interiors of a triangle is 180 degrees. 2y will represent the two angles, and we already have 60 degrees as one of the measures.

Equation: 2y+60=180

Now, simply subtract 60 from both sides

2y+60-60=180-60

This gives us 2y=120

Now divide both sides by 2

2y/2=120/2

y=60

So the answer is D. The value of y is 60 degrees.

User CPBL
by
2.2k points
15 votes
15 votes

Answer:

The answer is d-60.

Explanation:

The angles in a triangle have to add up to 180 degrees.

User Pear
by
2.9k points