Similar Figures: Finding Missing Sides and Angles

Front

What are similar figures?

Back

Similar figures are shapes that have the same shape but may differ in size. Their corresponding angles are equal, and the lengths of corresponding sides are proportional.

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

Front

How do you find missing sides in similar figures?

Back

To find missing sides in similar figures, set up a proportion using the lengths of corresponding sides from the two figures. Solve for the unknown side.

Tags

CCSS.HSG.SRT.A.2

Front

What is the property of corresponding angles in similar figures?

Back

In similar figures, corresponding angles are equal.

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

Front

If two triangles are similar, what can be said about their sides?

Back

The lengths of corresponding sides of similar triangles are in proportion.

Tags

CCSS.HSG.SRT.A.2

Front

How do you use proportions to find a missing height?

Back

To find a missing height using proportions, set up a ratio comparing the height of the object to a known height, and solve for the unknown.

Tags

CCSS.6.G.A.3

Front

What is the formula for finding the scale factor between two similar figures?

Back

The scale factor is found by dividing the length of a side of one figure by the length of the corresponding side of the other figure.

Tags

CCSS.7.G.A.1

Front

Back

Tags

CCSS.7.G.A.1

Front

How do you find missing angles in similar triangles?

Back

To find missing angles in similar triangles, use the fact that the sum of angles in a triangle is 180 degrees and that corresponding angles are equal.

Tags

CCSS.HSG.SRT.A.2

Front

What is the relationship between the sides of similar triangles?

Back

The ratios of the lengths of corresponding sides of similar triangles are equal.

Tags

CCSS.HSG.SRT.A.2

Front

Back

Tags

CCSS.HSG.SRT.A.2