Cos 30- cos 70=2 sin 50. sin 20.

Asap marking branliest! figure abcd is reflected over the y-axis to obtain figure a′b′c′d′ below: which statement best describes the relationship between the two figures? figure abcd is similar to figure a′b′c′d′. figure abcd is bigger than figure a′b′c′d′. the measure of angle d is equal to the measure of angle a′. the measure of angle d is equal to the measure of angle b′.