Learning Targets:

✳ I can use and describe rigid motions to decide if two figures are congruent (MGSE9-12.G.CO.6)

✳ I can use the definition of congruence to show that two triangles are congruent if and only if corresponding pairs of sides and corresponding pairs of angles are congruent. (MGSE9-12.G.CO.7)

✳ I can explain how the criteria for triangle congruence (SSS, SAS, ASA, AAS, and HL) follow from the definition of congruence in terms of rigid motions. (MGSE9-12.G.CO.8)

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Which of the learning targets/standards are you LEAST confident with?

I can use and describe rigid motions to decide if two figures are congruent (MGSE9-12.G.CO.6)

I can use the definition of congruence to show that two triangles are congruent if and only if corresponding pairs of sides and corresponding pairs of angles are congruent. (MGSE9-12.G.CO.7)

I can explain how the criteria for triangle congruence (SSS, SAS, ASA, AAS, and HL) follow from the definition of congruence in terms of rigid motions. (MGSE9-12.G.CO.8)

I feel like I have fully mastered each of the learning targets above

Rigid Motion Review

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Two figures are congruent if and only if one can be obtained from the other by a sequence of _ ____.

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no, a dilation has occurred

yes, a translation has occurred

yes, a reflection has occurred

yes, a rotation has occurred

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Select all transformations that are RIGID MOTIONS.

translation

dilation

reflection

rotation

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Are the triangles congruent?
Put the RIGID MOTIONS argument in the correct order.

Therefore, △ABC ≅ △RGD.
A reflection will map △ABC onto △RGD.
A reflection is a rigid motion.

Triangle Congruence Theorems

Determine if the two triangles are congruent. If they are, state how you know.

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Determine what ADDITIONAL information would be needed to show that the two triangles are congruent.

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In trianlge ΔAGE and ΔOLD, ∠A ≅ ∠O, and AE ≅ OD. What ADDITIONAL information is needed to prove that the triangles are congruent by AAS?

Corresponding Sides and Angles

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Triangle Congruence

Rigid Motion Review

Triangle Congruence Theorems

Corresponding Sides and Angles

Triangle Congruence

Learning Targets:

Which of the learning targets/standards are you LEAST confident with?

Rigid Motion Review

Two figures are congruent if and only if one can be obtained from the other by a sequence of ___________ ______________.

Select all transformations that are RIGID MOTIONS.

Are the triangles congruent?Put the RIGID MOTIONS argument in the correct order.

Triangle Congruence Theorems

In trianlge ΔAGE and ΔOLD, ∠A ≅ ∠O, and AE ≅ OD. What ADDITIONAL information is needed to prove that the triangles are congruent by AAS?

Corresponding Sides and Angles

Learning Targets:

Which of the learning targets/standards are you LEAST confident with?

Two figures are congruent if and only if one can be obtained from the other by a sequence of ___________ ______________.

Select all transformations that are RIGID MOTIONS.

Are the triangles congruent?Put the RIGID MOTIONS argument in the correct order.

In trianlge ΔAGE and ΔOLD, ∠A ≅ ∠O, and AE ≅ OD. What ADDITIONAL information is needed to prove that the triangles are congruent by AAS?

Two figures are congruent if and only if one can be obtained from the other by a sequence of _ ____.

Are the triangles congruent?
Put the RIGID MOTIONS argument in the correct order.

Two figures are congruent if and only if one can be obtained from the other by a sequence of _ ____.

Are the triangles congruent?
Put the RIGID MOTIONS argument in the correct order.