Illustrative Mathematics - Geometry - Unit 2 - Lesson 15 - Formative Library | Library

Select all quadrilaterals that have 180 degree rotational symmetry.

Select the statement that must be true.

EFGH is a parallelogram and angle HEF is a right angle.
Select all statements that must be true.

Figure ABCD is a parallelogram. Is triangle ADB congruent to triangle CBD?
Show or explain your reasoning.

Figure KLMN is a parallelogram. Prove that triangle KNL is congruent to triangle MLN.

This lesson is from Illustrative Mathematics. Geometry, Unit 2, Lesson 15. Internet. Available from https://curriculum.illustrativemathematics.org/HS/teachers/2/2/15/index.html ; accessed 29/July/2021.

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Illustrative Mathematics - Geometry - Unit 2 - Lesson 15

Select all quadrilaterals that have 180 degree rotational symmetry.

Select the statement that must be true.

EFGH is a parallelogram and angle HEF is a right angle. Select all statements that must be true.

Figure ABCD is a parallelogram. Is triangle ADB congruent to triangle CBD? Show or explain your reasoning.

Figure KLMN is a parallelogram. Prove that triangle KNL is congruent to triangle MLN.

EFGH is a parallelogram and angle HEF is a right angle.
Select all statements that must be true.

Figure ABCD is a parallelogram. Is triangle ADB congruent to triangle CBD?
Show or explain your reasoning.