Let ABCD square with side a (a>0). Let M be the point on the segment AC such that AC=2A, N the midpoint of BC, and E the point on the side CD such that DE=2EC. Calculate the following products: a) AC. CD
b) AE. EN
c)DN. MN

Anna is constructing a line segment that is congruent to another segment ab. for the construction, which tool should be used to mesure segment ab

Find the quotient with the restriction.

Which sum or difference identity would you use to verify that cos (180° - q) = -cos q? a.) sin (a -b) = sin a cos b – cos a sin b b.) cos (a -b) = cos a cos b – sin a sin b c.) cos (a -b) = cos a cosb + sin a sin b d.) sin (a + b) = sin a cos b + cos a sin b