Keisha estimates 259+372 by rounding each number to the nearest 10. What is Keisha's estimate of the sum?

Figure abcd is rotated by 180 degrees about the origin in the counterclockwise direction to obtain figure a′b′c′d′: will give brainliest which statement best compares the lengths of the sides of the two figures? length of ab = length of c′d′ length of cd = length of a′b′ length of cd = length of b′c′ length of ab = length of a′b′