Question

Meg described four triangles as shown below:

Triangle P: All sides have length 7 cm.
Triangle Q: Two angles measure 55°.
Triangle R: Two sides have length 8 cm, and the included angle measures 60°.
Triangle S: Base has length 8 cm, and base angles measure 55°.

Which triangle is not a unique triangle?

Answer 1

@waterineyes

Answer 2

please help if you know :)

Answer 3

What is a unique triangle?

Answer 4

Unique Triangles are Triangles that do not have an equivalent. This means there is not another triangle that has the exact dimensions or shape.

Answer 5

@waterineyes

Answer 6

See, in P, all the sides are equal, so here you get equivalent... So it is unique..

Answer 7

In Q also, you have two sides equal, here also equal term comes, it is not unique..

Answer 8

*i mean Q is also unique..

Answer 9

ok so that leaves R and S

Answer 10

hell : In Q, two angles are equal, so it is also unique..

Answer 11

In R, see two sides are equal, it is also unique...

Answer 12

ok so its not the first 2 right? lol

Answer 13

See, where you are getting something equal, that is unique...

Answer 14

oh ok and S isn't

Answer 15

so my answer would be S then?

Answer 16

In third, R, as two sides are equal, see they are equal, so R is unique..
Yes, S is not unique as side is not equal to any other side and angle also is not equal to any other angle of triangle..

Answer 17

Hopefully, the answer is "last letter" of my username.. :P

Answer 18

ok then thank you so much! @waterineyes

Answer 19

\(\dagger\).