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3 years ago

PLEASE HELP!! What is the value for y? Enter your answer in the box. y =

Mathematics

2 answers:

Mamont248 [21]3 years ago

6 0

Answer:

y=28

Step-by-step explanation:

1. As ABC is an isosceles triangle, that means that angle A is congruent to angle B, which means angle B measures 34˚.

2. The sum of the angles of a triangle add up to 180˚. So, make an equation:

A+B+C=180

As we already know A and B, plug them in:

34+34+C=180

Then solve:

C=112˚

3. As we know that C=4y, we can solve for y: 112/4=28

ValentinkaMS [17]3 years ago

3 0

Answer:

Step-by-step explanation:

X-5=34

X=39

Because it’s isosceles has two sides congruent .

34+5=39

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<u>Step-by-step explanation:</u>

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