Transformations the produce similar figures include:
Dialation
Rotation
Translation
Reflection
Transformations that produce congruent figures include:
Rotations
Translations
Reflections
I would say duolingo. it's an app, not a website though
To find the length of one sides of the square, you must find the square root of the area. Therefore, your answer would be 13.
The answer is 147 because a triangles measures up to 360 degrees so u would add the two u have up and subtract that for 360 and u get 147