[Here, DO divides twice ∠D equally, Here, CO divides twice ∠C equally] (a) Prove that, ∠A+∠B+∠C+∠D=4 right angles.
(b) Show that, ∠COD=90°
(c) Prove that, BEDF is a parallelogram

How can I solve this. I am bad at geometry. I got 0 at this question

The median for the given set of six ordered data values is 29.5 9 12 25 __ 41 48 what is the missing value?

Which number can each term of the equation be multiplied by to eliminate the decimals before solving? 5.6j- 0.12=4+1.1j

Sanderson is having trouble with his assignment. his shown work is as follows: − 3 7 7 3 = − 3 7 × 7 3 = − 21 21 = −1 however, his answer does not match the answer that his teacher gives him. complete the description of sanderson's mistake. find the correct answer.