Properties of Similar Triangles
Please refer to the figure attached.
<span>Corresponding angles are congruent (same measure) So in the figure above, the angle P=P', Q=Q', and R=R'.
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Corresponding sides are all in the same proportion. Above, PQ is twice the length of P'Q'. Therefore, the other pairs of sides are also in that proportion.</span></span>
Just multiply the order pairs by 3. For example,
(2,0) times 3 = (6,0)
(3, -1) times 3 = (9,-3)
(-2,-5) times 3 = (-6, -15)
77 percent is the correct answer