Illustrative Mathematics - Geometry - Mathematics - Unit 2 - Lesson 5 - Formative Library | Library

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1.

Write a sequence of rigid motions to take figure ABC to figure DEF.

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2.

Prove the circle centered at A is congruent to the circle centered at C.

AB = CD

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3.

Which conjecture is possible to prove?

All squares with at least one side length of 3 are congruent.

All quadrilaterals with at least one side length of 3 are congruent.

All rectangles with at least one side length of 3 are congruent.

All rhombuses with at least one side length of 3 are congruent.

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4.

Match each statement using only the information shown in the pairs of congruent triangles.

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5.

Triangle HEF is the image of triangle HGF after a reflection across line FH. Write a congruence statement for the 2 congruent triangles.

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6.

Triangle ABC is congruent to triangle EDF. So, Lin knows that there is a sequence of rigid motions that takes ABC to EDF.
Select all true statements after the transformations:

Angle B coincides with angle D.

Angle C coincides with angle E.

Segment BA coincides with segment DE.

Angle A coincides with angle F.

Segment BC coincides with segment FE.

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7.

This design began from the construction of a regular hexagon. Is quadrilateral JKLO congruent to the other 2 quadrilaterals? Explain how you know.

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This lesson is from Illustrative Mathematics. Geometry, Unit 2, Lesson 5. Internet. Available from https://curriculum.illustrativemathematics.org/HS/teachers/2/2/5/index.html ; accessed 29/July/2021.

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