Mathematics
Grade9
Easy
Question
In trapezoid SKEW, the parallel sides are _______________.
- EK and WS
- WE and SW
- EW and SK
- SK and KE
Hint:
Two lines are parallel if and only if the consecutive interior angles are supplementary.
The correct answer is: EW and SK
The angles ∠WSK and ∠EWS are supplementary.
∠WSK + ∠EWS = 180
(If the consecutive interior angles are supplementary, then the lines are parallel.)
So, EW∥SK
Thus, in trapezoid SKEW, the parallel sides are EW and SK.
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