Objects that have the same shape includes: proportional sides and same angles have the _____.
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Dilation
A transformation that grows/shrinks a figure, but keep the same overall shape (preserve angles).
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Scale factor
When the scale is less than 1, the image is smaller than the pre-image; when the scale is more than 1 then the image is larger than the pre-image. This is the _____.
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Similarity transformation
The shape of the figure is retained during dilation.
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Colinear
Lies on the same straight line or in a single line.
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Rigid transformation
A transformation that preseves length.
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Angle-Angle
When two triangles have 2 congruent pairs of angles.
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Side-Angle-Side
When two sides are proportional and the included angles are congruent.
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Side-Side-Side
When three sides of one triangle are proportional to three sides of another triangle.
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Pythagorean theorem
The square of two legs in a triangle equal to the square of the hypotenuse.
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Triangle proportionality theorem
A line parallel to one side of a triangle divides the other two sides of the triangle proportionality.
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Triangle bisector theorem
The angle bisector of one angle of a triangle divides the opposite side of the triangle into segments proportional to the lengths of the other two sides of the triangles.
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opposite/adjacent
Tangent ratio
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opposite/hypotenuse
Sine ratio
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adjacent/hypotenuse
Cosine ratio
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SinA = CosB
The sine of an angle is equal to the cosine of its complementary angle.
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CosA = SinB
The cosine of an angle is equal to the sine of its complementary angle.
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adjacent/opposite
ArcTan
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hypotenuse/opposite
ArcSin
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hypotenuse/adjacent
ArcCos
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Sin a / a = Sin b / b = Sin c / c
Law of Sines
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a^2 + b^2 - 2abcosC = c^2
Law of Cosines
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1/2 x ab x sinC
Area of a triangle using sines of an angle.
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1 /3 2
30 - 60 - 90 similarity
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1 1 /2
45 - 45 - 90 similarity
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corresponding angles; corresponding sides
Similar figures will have ___ that are the same measure and ___ that are proportional.