Dilation and Angle Review

Front

What are Congruent Angles?

Back

Congruent angles are angles that have the same measure.

Front

What is Dilation in Geometry?

Back

Dilation is a transformation that alters the size of a figure but not its shape.

Front

What is a Scale Factor?

Back

A scale factor is a number that scales, or multiplies, the dimensions of a figure during dilation.

Front

How do you determine the coordinates of a dilated point?

Back

Multiply each coordinate of the original point by the scale factor.

Front

What is the result of dilating point C(2, 7) with a scale factor of 6?

Back

C' (12, 42) is the result of the dilation.

Front

What is the difference between Enlargement and Reduction in Dilation?

Back

Enlargement increases the size of a figure (scale factor > 1), while reduction decreases the size (scale factor < 1).

Front

What is the scale factor if a figure is reduced to half its size?

Back

The scale factor is 1/2.

Front

What are Vertical Angles?

Back

Vertical angles are the angles opposite each other when two lines intersect, and they are always congruent.

Front

What are Supplementary Angles?

Back

Supplementary angles are two angles whose measures add up to 180 degrees.

Front

What is the result of dilating point A(0, 4) with a scale factor of 10?

Back

A' (0, 40) is the result of the dilation.