Question

Are the two triangles similar? How do you know?

Answer 1

Check out the angles. If they are congruent, the triangles are similar.

Answer 2

Check out the ratios of the sides. If they are the same, the triangles are similar.

Answer 3

Go back to your first post and start reading there. Then you will be able to answer your own question.

Answer 4

Did you figure out the angles in the first problem?

Answer 5

I don't think they are congruent. The angles are congruent but the sides are not. But we are trying to show that they are similar. That means they have the same shape. We don't care if they have the same size or not.

Answer 6

But we know if the angles are congruent that they have the same shape...ie they are similar.

Answer 7

You could say that. It might be a little more mathematically precise if you would say: "Yes they are similar because the angles are congruent."

Answer 8

What is the ratio of OK to ON?

Answer 9

So the ratio is 3/4.
What is the ratio of OJ to OM ?

Answer 10

Reduce that fraction.

Answer 11

So you can say: Yes the triangles are similar because the corresponding sides have the same ratio.

Answer 12

yes and yw

Answer 13

yw