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· ang-2
Angles · Parallel lines
AMC 8 style
●●○○○ 3/10
~2 min
⏱ 0:00
Lines
ℓ
\ell
ℓ
and
m
m
m
are parallel. A transversal makes a
40
°
40°
40°
angle with
ℓ
\ell
ℓ
. What is the measure of the co-interior (same-side interior) angle at
m
m
m
, in degrees?
parallel-lines
transversal
A
40
°
40°
40°
B
50
°
50°
50°
C
130
°
130°
130°
D
140
°
140°
140°
E
150
°
150°
150°
Submit
Hint 1 of 3
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