the back of a dog house is composed of a square and a triangle. How much wood is needed for the back of the dog house to the nearest tenth of a square foot i pretty much need a expression for the anwser pls help me with it​

Match the following reasons with the statements given to create the proof. 1. do = ob, ao = oc sas 2. doc = aob given 3. triangle cod congruent to triangle aob vertical angles are equal. 4. 1 = 2, ab = dc if two sides = and ||, then a parallelogram. 5. ab||dc if alternate interior angles =, then lines parallel. 6. abcd is a parallelogram cpcte