Question

I dont understand question 3​

Answer 1

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