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RoseWind [281]
3 years ago
14

Can somone help me pls? i am really bad at this. number 12 :)​

Mathematics
2 answers:
Aleksandr [31]3 years ago
5 0

Answer:

m∠3 = 78

Step-by-step explanation:

Okay, since a triangle has 3 sides, we only need to find the measure of m∠3.

A triangle is made up of 180 degrees, so we can make an equation with 180 as what the equation is equal to.

Since m∠1 = 70, and m∠2 = 32, we will add those together with a variable x,

70+32+x=180

70 plus 32 is 102.

102+x=180

To get 102 to the other side we need to do the opposite of addition, which is subtraction.

180-102=78

So the answer is 78.

olya-2409 [2.1K]3 years ago
3 0

whats the question

ill edit the answer in you put the question

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