Geo: Topic 7 Extra Review

Front

What is the method to find the height of a tall object using a mirror?

Back

Stand at a distance where you can see the top of the object in the mirror placed on the ground. The height can be calculated using similar triangles.

Front

What happens to angles during a dilation?

Back

Angles stay the same.

Front

What happens to the shape during a dilation?

Back

The shape stays the same.

Front

What is the SSS similarity postulate?

Back

If the three sides of one triangle are proportional to the three sides of another triangle, then the triangles are similar.

Front

What is the SAS similarity postulate?

Back

If two sides of one triangle are proportional to two sides of another triangle and the included angles are equal, then the triangles are similar.

Front

What is the AA similarity postulate?

Back

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

Front

What is a midsegment in a triangle?

Back

A midsegment connects the midpoints of two sides of a triangle and is parallel to the third side.

Front

What does it mean for sides to stay in proportion during a dilation?

Back

The lengths of the sides of the shape change, but the ratio of the lengths remains constant.

Front

What is the definition of similar triangles?

Back

Triangles that have the same shape but may differ in size; their corresponding angles are equal and their corresponding sides are in proportion.

Front

How do you determine if two triangles are similar using the SSS postulate?

Back

By comparing the lengths of their corresponding sides to see if they are proportional.