The rectangle was rotated 360° around its center, point C. Vertex D traces the path of a circle and lands back upon itself. Which best explains why the rotation represents an isometric transformation?

The angle at point D remained a right angle.

The rectangle did not change shape or size.

Point C remained the center of the rectangle.

Point C did not remain the center of the rectangle.

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m

step-by-step explanation:

two pairs of adjacent sides are of equal length. this implies that one diagonal divides the kite into congruent triangles, and so the angles between the two pairs of equal sides are equal in measure. it also implies that the diagonals are perpendicular.