Geometry: Can someone explain this one. Only if you know the answer please. Thanks. (It's not AAA) ​

Describe all the numbers that when rounded to the nearest thousand are 645,000

Write a function for a rotation 90 degrees counter clockwise about the origin, point 0

When are triangles considered similar? a. corresponding angles are equal andcorresponding sides are proportionalb. corresponding angles are proportional andcorresponding sides are equalc. corresponding angles are equal orcorresponding sides are proportionald. corresponding angles are proportional orcorresponding sides are equal select the best answer from the choices providedmark this and retumsave and exitnext