Mathematics

Mathematics

Problem

Lines

l

and

m

are parallel and a transversal

t

meets them at points

P

(on

l

) and

Q

(on

m

). At

P

, the interior angle on the left of

t

between

l

and

t

measures

68^{\circ}

. What is the measure of the angle on the right of

t

at

Q

that lies outside the region between

l

and

m

? a)

136^{\circ}

b)

68^{\circ}

c)

112^{\circ}

d)

90^{\circ}

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