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Mathematics 14 Online
Shantelsurry:

https://www.usatestprep.com/modules/gallery/files/77/7716/7716.png Consider that lines a and b are parallel. What is the measurement of ∠12

carmelle:

is this a test or quiz?

Shantelsurry:

It’s just a review

carmelle:

ok, just wondering

Shantelsurry:

Why

Shantelsurry:

I don’t understand

carmelle:

\(\color{#0cbb34}{\text{Originally Posted by}}\) @Shantelsurry Why \(\color{#0cbb34}{\text{End of Quote}}\) just wondering because test and quizzes are against the rules here

Aricuzyas:

∠4 + 42 + 62 = 180 ∠4 = 76 degrees; therefore,∠12 also equals 76 degrees

Shantelsurry:

Kk it seems like u don’t wanna help me

Shantelsurry:

Thank you

Aricuzyas:

You're welcome.

Shantelsurry:

I tell her it’s a review

carmelle:

ok

Shantelsurry:

It’s not a test or quiz

Aricuzyas:

Okay.

Aricuzyas:

Do you need anymore help on anything?

Shantelsurry:

Not yet

Aricuzyas:

\(\color{#0cbb34}{\text{Originally Posted by}}\) @Shantelsurry Not yet \(\color{#0cbb34}{\text{End of Quote}}\) Let me know when you do.

jimthompson5910:

What do you notice about the red and blue angles I've marked in the diagram below?

Shantelsurry:

Their congruent

jimthompson5910:

Yes because they are vertical angles

jimthompson5910:

So angle 3 is 62 degrees

Shantelsurry:

Your wrong

jimthompson5910:

62 isn't the final answer, but it helps us get there

Shantelsurry:

Ok

jimthompson5910:

Note these three angles form a straight angle |dw:1613092408827:dw| So they add to 180 x+62+42 = 180 What do you get when you solve for x?

jimthompson5910:

hint: x+62+42 = 180 turns into x+104 = 180

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