Unit 1 Math Vocab Quiz!

is a transformation of a figure in which the figure stretches or shrinks with respect to a fixed point called the center of the dilation.

• Dilation

• Scale Factor

The number that you multiply by to stretch or shrink a figure.

• Scale Factor

• Dilation

Are triangles where all pairs of corresponding angles are congruent and the lengths of all corresponding sides are proportional similar triangles have the same shape but not always the same size

• Similar Triangles

• Odd Triangles

If two angles of one triangle are congruent to two angles of another triangle, then the triangles are similar.

• Side - Side Similarity Theorem

• Angle - Angle Similarity Theorem

If all three corresponding sides of two triangles are proportional, then the triangles are similar.

• Side-Side-Side Similarity Theorem

• Angle Side Side Similarity Theorem

If two of the corresponding sides of two triangles are proportional and the included angles are congruent, then the triangles are similar.

• Side Similarity Theorem

• Side-Angle-Side Similarity Theorem

We can use this to solve for a variable if there’s a fraction equals a fraction.

• Cross Multiplying

• Indirect Measure

We can use similar triangles to calculate heights or lengths that are difficult to measure in real life. 

• Direct Measures

• Indirect Measure

• Triangle Proportionality Theorem

• Angle Bisector Theorem

• Triangle Proportionality Theorem

• Proportionality Theorem