Similar

The two right triangles below are similar. What is x, the missing side length in triangle DEF? 

• 3.75

• 9.75

• 10

• 12

Are the following similar? Why or why not?

• Yes. All pairs of corresponding angles are congruent.

• No, the corresponding angles are not equal.

• No, the ratios of the corresponding sides are not equal.

The pair of figures are similar. Find the missing side.

• x = 9

• x = 28

• x = 7

• x = 63

Determine whether the triangles are similar by AA~, SSS~, SAS~, or not similar. Select all that applies.

• AA

• SAS

• SSS

• not similar

Find the value of X.

• 4

• 6

• 12

• 7

Determine whether the triangles are similar by AA~, SSS~, SAS~, or not similar.

• AA

• SSS

• SAS

• no similar

Determine whether the triangles are similar by AA~, SSS~, SAS~, or not similar.

• SSS

• AA

• SAS

• not similar

Which of the following pairs of angles are similar?

Two triangles are similar if they have:

• Equal perimeters

• Equal areas

• Equal corresponding angles

• Equal corresponding sides

If two polygons are similar, then their corresponding sides are:

• Equal

• Proportional

• Perpendicular

• Parallel