Ask your own question, for FREE!
Mathematics 10 Online
OpenStudy (anonymous):

The triangle ABC in the plane has vertices A(1, 0), B(3, 1), C(2, 2). The triangle PQR has vertices P(−1, 0), Q(−3, 1), R(−2, 2). Draw a rough sketch of the two triangles, and by explicitly describing an isometry between them (or otherwise), show that the triangles ABC and PQR are congruent.

OpenStudy (anonymous):

I've drawn the sketch, I just don't understand what to do for "by explicitly describing an isometry between them (or otherwise), show that the triangles ABC and PQR are congruent."

OpenStudy (anonymous):

An isometry is the way you map a point on a figure to the corresponding point on a congruent figure. If your sketch is correct, you'll see that the two triangles are reflections of each other across the y-axis. So you can use that as the expicit description, or as a general rule (not just for veticies) *any* point (x,y) on firgure 1 maps such that \[(x,y)\rightarrow(-x,y)\] on figure 2.

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Latest Questions
Unknownuser8009: I have 12 days till my birthday... thoughts on what should I do?
3 hours ago 6 Replies 1 Medal
xXAikoXx: i have hip pain help.
7 hours ago 2 Replies 1 Medal
alphaXtiger: help .,.
8 hours ago 5 Replies 1 Medal
ihy: here's a song
10 hours ago 0 Replies 0 Medals
ihy: Here's a song I learned.
10 hours ago 0 Replies 0 Medals
abound: Im sad
10 hours ago 6 Replies 1 Medal
xXAikoXx: i got upper back pain help
11 hours ago 9 Replies 2 Medals
Gdub08: What's the best way to study for a test and quiz?
12 hours ago 9 Replies 1 Medal
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!