Step-by-step Answer
PAGE: 359SET: ExercisesPROBLEM: 3
Please look in your text book for this problem Statement

A quadrilateral is a trapezoid if exactly one pair of opposite sides are parallel.

Use slope formula to determine if atleast one pair of opposite sides are parallel.

The slope formula is .

Slope of            (Substitute )


Slope of                 (Substitute )


Slope of          (Substitute )

Slope of          (Substitute )

Since slopes of and are equal, .

Therefore, QRST is a trapezoid.

QRST is a trapezoid.


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