9-4 Day 2 Warm Up

Congruent shapes have the same...

• Size

• Color

• Shape

• Rotation

Select all true statements about similar figures.

• Corresponding sides are always PROPORTIONAL.

• Corresponding angles are NOT CONGRUENT.

• Corresponding anlges are CONGRUENT.

• Corresponding sides are ALWAYS congruent.

Tell whether the two figures are congruent.

• Yes, same size and same shape
• No, same shape but different sizes
• No, different size and different shapes

Are these shapes congruent?

• Yes
• No

Are the following similar? Why or why not?

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

• A
• C
• D

Are the triangles similar? Explain.

• No, because only one angle of the triangles is congruent.
• Yes, because two of the angles are congruent.
• No, because only one triangle has a right angle.
• Not enough information to determine.

Are the two triangles similar? How do you know?

• No, there are not two pairs of corresponding angles that are congruent

  (by AA similarity).

• Yes, because there are two congruent pairs of corresponding angles

  (by AA similarity).

• There is not enough information given in the problem.

• No, because the side lengths are not proportional.

Are the triangles similar? How do you know?

• Yes - there are two corresponding angle pairs that are congruent (AA similarity)

• Yes - all corresponding sides are proportional

• No - there are not two pairs of corresponding angles that are congruent (AA similarity)

• No - the corresponding side lengths are not proportional.

Tags

CCSS.HSG.SRT.A.2

CCSS.HSG.SRT.A.3

CCSS.HSG.SRT.B.5

Are the following similar? Why or why not?

• Yes. All pairs of corresponding angles are CONGRUENT & corresponding sides are PROPORTIONAL.

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