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Similar Polygons especially Triangles H-1 outcome 2019
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Terms in this set (26)
similar polygons
Two polygonss are similar if:
(1) Their corresponding angles are congruent AND
(2) Their corresponding sides are proportional
similarity ratio
The ratio of the lengths of two corresponding sides
AA similarity
If at least two angles of one triangle are congruent to two angles of another triangle, then the the triangles are similar
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1/2
Find the designated scale factor
Always
State whether the given figures are sometimes, always, or never similar.
Two equilateral triangles
Sometimes
State whether the given figures are sometimes, always, or never similar.
Two right triangles
Never
Could a circle and a square be similar?
Always
State whether the given figures are sometimes, always, or never similar.
Two circles
Always
State whether the given figures are sometimes, always, or never similar.
Two isosceles triangles in which the vertex angles are congruent.
Sometimes
State whether the given figures are sometimes, always, or never similar.
Two isosceles triangles
Sometimes
State whether the given figures are sometimes, always, or never similar.
Two rectangles
Always
State whether the given figures are sometimes, always, or never similar.
Two squares
equilateral triangle
a triangle in which all three sides are equal.
isoceles triangle
a triangle that has two sides of equal length
scalene triangle
a triangle that has three unequal sides
polygon
any 2-dimensional shape formed with straight lines
regular polygon
equal length sides with equal angles between each side
similar polygons
Two polygons whose corresponding angles are congruent and the lengths of the corresponding sides are proportional
similar triangles
triangles with equal corresponding angles and proportionate sides.
congruent triangles
have exactly the same three sides and exactly the same three angles; they may be turned or flipped
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