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Study Guide for Quiz on Sections 9.4 to 9.5
This is for the textbook entitled; Geometry: Concepts and Applications
10
Mathematics
11th Grade
02/09/2012

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Cards

Term
If a line is Parallel to one side of a triangle, and intersects the other two sides then...
Definition
The new triangle is similar to the original.
Term
If a line is Parallel to one side of a triangle, and intersects the other two sides,...
Definition
then it separates the other two sides into proportional parts.
Term
If a line intersects two sides of a triangle, so that they are cut into porportional parts, then...
Definition
the line is parallel to the third side.
Term
In triangle ABC, if D and E are the midpoints of Line segments AB and AC. 
Definition
Line segment DE is parallel to line segment BC
Term
If R, S and T are the midpoints of the sides of triangle GHJ,...
Definition
Line segment RS is parallel to line segment JH.
Term
If 3 or more Parallel Lines intersect two transversals, then
Definition
the lines divide the transversals proportionally
Term
If 3 or more parallel lines cut off congruent segments on one transversal, then
Definition
those same lines (not the first transversal) cut off congruent segments on the other transversal
Term

What are the proper steps for the following equation:


12/x = 9/15?

Definition
9x = 180
[x = 20] 
Term
If per-say there are two triangles; PIT and JAG, and the sides of PIT are 20, 26 and 24, while the sides of JAG are 10, 12 and 13, Are those two triangles porportional?
Definition
YES
Term
If 2 triangles are similar, then
Definition
the ratio of their perimeters is equal to their scale factor
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