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I dont understand question 3​

I dont understand question 3​-example-1

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Hello from MrBillDoesMath!

Answer:

col 1: 60

col 2: 60

col 3: 120

col 4: 120

Discussion:

Two lines intersect in two pairs of vertical angles and pairs of vertical angles are equal. Trial and error showed these values shroud do the trick:

col 1: 60

col 2: 60

col 3: 120

col 4: 120

Note the vertical angles: (col 1,col 2) and (col 3, col 4). Also col 1+ col2 + col 3 + col 4 = 360, which is the number of degrees spanned by a line.

Thank you,

MrB

User Reza Jenabi
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