Triangle ABC is congruent to triangle EDF. So Kiran knows that there is a sequence of rigid motions that takes ABC to EDF.
Question 2
2.
Question 3
3.
The triangles are congruent. Which sequence of rigid motions will take triangle XYZ to triangle BCA?
Question 4
4.
Which of the following is the best explaination for why the image of ray CA lines up with ray CEAND why the image of A coincides with E?
Question 5
5.
Put the following explainations for why triangle CBA is congruent to triangle CDE in order from best to worst.
Triangle CBA is congruent to triangle CDE because the triangles can be moved to one another by translation, reflection, and/or rotation.
Triangle CBA is congruent to triangle CDE because the triangle CBA and triangle CDE are the same. They have the same area and both are triangles.
Triangle CBA is congruent to triangle CDE because they have the same side lenghts, angle measures, and areas.
Triangle CBA is congruent to triangle CDE because all the points line up and they have the same side legths and angle measures.
Question 6
6.
Triangle ABC is congruent to triangle DEF. Select all the statements that are a result of corresponding parts of congruent triangles being congruent.
Question 7
7.
Why is Tyler's congruence statement incorrect?
Fill in the blank to write the correct congruence statements for the pentagons:
ASDPX is congruent to _______.
Question 9
9.
Why is angle ACD congruent to angle ADB?
Question 10
10.
What is the measure of angle EAC?
Question 11
11.
What is the measure of angle DAB?
A. Angle A coincides with angle F.
B. Angle B coincides with angle D.
C. Segment AC coincides with segment EF.
D. Segment BC coincides with segment ED.
E. Segment AB coincides with segment ED.
Triangle HEF is the image of triangle FGH after a 180 degree rotation around point K. Select all statements that must be true.
A. Triangle HGF is congruent to triangle FEH.
B. Triangle GFH is congruent to triangle EFH.
C. Angle KHE is congruent to angle KHG.
D. Angle GHK is congruent to angle EFK.
E. Segment EH is congruent to segment GH.
F. Segment HG is congruent to segment FE.
G. Segment FH is congruent to segment HF.
B. Translate XYZ using directed line segment YC. Rotate X'Y'Z' using C as the center so that X' coincides with B. Reflect X"Y"Z" across line AC.
C. Translate XYZ using directed line segment YC. Rotate X'Y'Z' using C as the center so that X' coincides with A. Reflect X"Y"Z" across line CB.
D. Translate XYZ using directed line segment YC. Rotate X'Y'Z' using C as the center so that X' coincides with A. Reflect X"Y"Z" across line AC.
Any rotation that puts point A on point E will make them line up with each other. Therefore, ray CA lines up with ray CE and points A and E will coincide with each other.
Any rotation around point C will put point A on point E. Therefore, ray CA lines up with ray CE and points A and E will coincide with each other.
The rotation by angle ACE with center C forces point A to coincide with point C, which makes rays CA and CE line up with each other.
