A triangle is rotated 30 degrees about the origin. What is true about the relationship between the image and the pre-image?
1- The length of the sides and the measures of the angles are preserved, so the triangles are congruent.
2- The lengths of the sides are enlarged and measures of the angled are preserved, so the triangles are similar.
3- The lengths of the sides change and the measures of the angles change as well, so the triangles look nothing alike.
4- The lengths of the sides are reduced and measures of the angles are preserved, so one triangle is a reduction of the other.

Question

A triangle is rotated 30 degrees about the origin. What is true about the relationship between the image and the pre-image? 
1- The length of the sides and the measures of the angles are preserved, so the triangles are congruent.
2- The lengths of the sides are enlarged and measures of the angled are preserved, so the triangles are similar. 
3- The lengths of the sides change and the measures of the angles change as well, so the triangles look nothing alike. 
4- The lengths of the sides are reduced and measures of the angles are preserved, so one triangle is a reduction of the other.

anonymous · Answer

Thank you for looking. Last question I need help on. ASAP!!! Tenth Grade Geometry

anonymous · Answer

I think it is 2 but I am not sure?!?!?

alexandervonhumboldt2 · Answer

the rotation is the rigid motion. the lengths of sides, the angles, everything is remaining the same, thus the triangles are congruent

alexandervonhumboldt2 · Answer

2nd is incorrect

anonymous · Answer

Thank you, so much.

alexandervonhumboldt2 · Answer

np