Part IV
Answer all questions in this part. Each correct answer will receive 6 credits. Clearly indicate the
necessary steps, including appropriate formula substitutions, diagrams, graphs, charts, etc. For all
questions in this part, a correct numerical answer with no work shown will receive only 1 credit. [
]
12
33 Given:
T(−1,1), R(3,4), A(7,2), and P(−1,−4)
Prove: TRAP is a trapezoid.
TRAP is not an isosceles trapezoid.
[The use of the grid on the next page is optional.]
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Math. B – Aug. ’09