ch.7 true or false

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midsegment of a triangle

A segment whose endpoints are the midpoints of two sides.

similar polygons have to have the same side lengths but same angles (same shape)

false because they do not have to have the same sides, and angles

in convex polygon all angles would not be the same

false they would be the same

scale factor is not a ratio written as a fraction

false, it is a ratio written as a fraction

side-splitter

line parallel to one side of a triangle separates the other two sides proportional

if two triangles are similar then the measures of corresponding sides are proportional to...

measure of corresponding altitudes, angle bisectors, and medians

if two triangles are similar then the perimeters are proportional to...

measures of corresponding sides

side-side-side

measures of corresponding sides of 2 triangles are proportional

side-angle-side

measures two side lengths of one triangle are proportional to measure of two corresponding side lengths of another triangle, included angles are congruent

what does the angle bisector do?

separates the side opposite the angle into segments that have the same ratio as the other two sides.

corresponding polygons must have corresponding sides and angles must be equal

true

in order for a polygon to be similar it must have congruent angles

true

not every right triangle is similar to other right triangles

true

two polygons are similar if and only if their corresponding angles are congruent and their corresponding sides are proportional

true

angle-angle

two angles of one triangle are congruent to two angles of another triangle then they are similar


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