Regents Exam Questions - G.g.69 Quadrilaterals In The Coordinate Plane 2 Worksheet With Answers Page 8

ID: A

10 ANS:

. To prove that TRAP is a trapezoid, show that one pair of opposite sides of the figure is

parallel by showing they have the same slope and that the other pair of opposite sides is not parallel by showing

they do not have the same slope:

To prove that a trapezoid is not an isosceles trapezoid, show that the opposite sides that are not parallel are also

not congruent using the distance formula:

REF: 080933b

11 ANS:

To prove that ABCD is a trapezoid, show that one pair of opposite sides of the figure is parallel by showing they

have the same slope and that the other pair of opposite sides is not parallel by showing they do not have the same

slope:

and

are parallel, then:

But the facts of the problem indicate

, so

and

are not parallel.

To prove that a trapezoid is an isosceles trapezoid, show that the opposite sides that are not parallel are congruent

using the distance formula:

REF: 080534b

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