When rectangle ABCD is reflected across line EF, the image is DCBA. How do you know that segment AB is congruent to DC?
Question 2
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.
Draw triangle ABC after a reflection acorss line BC. Label points A', B', and C'.
Triangle ACA' is a(n) _______ triangle, because _______.
Question 5
5.
Question 6
6.
Explain why points D, A, and E are collinear.
Fill in the blanks to explain why line DE is parallel to line BC:
Angle DAB and angle CBA are __________ angles, made by transversal __________. Because triangle BAD is congruent to triangle ABC, angles DAB and CBA are __________. Therefore lines DE and BC must be __________.
Question 8
8.
Question 9
9.
Select all of the transformations necessary to take ABCD to figure DJLK.
D. Corresponding parts of congruent figures are congruent.
B. EFGH has 4 congruent sides.
C. Diagonal FH bisects angles EFG and EHG.
D. Diagonal FH is perpendicular to side FE.
E. Angle FEH is congruent to angle FGH.
Triangles FAD and DCE are translations of triangle ABC. Select all the statements that must be true.
A. Points B, A, and F are collinear.
B. The measure of angle BCA is the same as the measure of angle CED.
C. Line AD is parallel to line BC.
D. The measure of angle CED is the same as the measure of angle FAD.
E. The measure of angle DAC is the same as the measure of angle BCA.
F. Triangle ADC is a reflection of triangle FAD.
Select any figures that are the result of a rigid transformation of quadrilateral ABCD.
