Whoever answers this question correctly gets brainliest.

In trapezoid abcd, ac is a diagonal and ∠abc≅∠acd. find ac if the lengths of the bases bc and ad are 12m and 27m respectively.

Recall that two angles are complementary if the sum of their measures is? 90°. find the measures of two complementary angles if one angle is twenty dash nine times the other angle.

Find the sum of the given arithmetic series. 24 + 17 + 10 + 3 + + (–39)