Unit 2, Lesson 1

Congruent Parts, Part 1

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Integrated Math 1

Practice

Problem 1

When rectangle $ABCD$ is reflected across line $EF$, the image is $DCBA$. How do you know that segment $AB$ is congruent to segment $DC$?

<p>Rectangle ABCD is reflected across line EF creating rectangle CDEF.</p>

A rectangle has 2 pairs of parallel sides.
Any 2 sides of a rectangle are congruent.
Congruent parts of congruent figures are corresponding.
Corresponding parts of congruent figures are congruent.

Problem 2

Triangle $FGH$ is the image of isosceles triangle $FEH$ after a reflection across line $HF$. Select all the statements that are a result of corresponding parts of congruent triangles being congruent.

<p>Triangle FGH is the image of isosceles triangle FEH after a reflection across line HF.</p> — $\overline{FE} \cong \overline{HE}$

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