l || m. Find m∠3 if m∠5 = 38 and m∠6 = 62.?

l || m

Answer 1

∠7 = 180 – ∠5 – ∠6 = 180-38-62 = 80 (because ∠5,6,7 make a straight line = 180)
∠7 = ∠3 (because l||m, and these angels make a Z shape)
So ∠3 is also 80 degrees.

Answer 2

m<7 = 180 - (38 + 62) = 80 degrees (supplementary angles) m<3 = m<7 = 80 degrees (alternate angles) third choice

Answer 3

∠ 7 and ∠ 3 are ALTERNATE INTERIOR ANGLES…

what do you know about alternate interior angles when two lines are parallel ?
You must know something !!

m∠5 + m∠6 + m∠7 = 180º

given m∠5 and m∠6, m∠7 = ?? Do something !!

What did you get ??

[m ∠3 = 80º ]

Answer 4

LOL its 38º
linear pair = 180º
alternate angles
and sum of interior angle of triangle
easy

Source(s): my mind

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