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Each quadrilateral below is a parallelogram . find the missing measures .
Each quadrilateral below is a parallelogram . find the missing measures .
Answer:AD = 8DC = 15m∠A = 112°m∠B = 68°m∠C = °Step-by-step explanation:If we're working with parallelograms, we can assume that each line and it's opposite are perfectly parallel.To find AD, all you need to do is look to the opposite line, BC. Since This is a parallelogram, AD = BC, so AD is 8.To find DC, you do the exact same. Find the opposite line that it is parallel to, in this case that's AB, and since AB = DC, you know that DC = 15.To find m∠A, let's look at m∠D. Since m∠D = is 68°, We can use that knowledge to find m∠A. Since the two angles are right beside each other on the same line, together they would equal 180° if you added them up. But since you don't know what m∠A is, you just have to subtract 68 from 180.180 - 68 =112.To find m∠B, We simply look back to m∠D. Since m∠B is directly opposite to m∠D, That means they have the same value, 68°.And finally, to find m∠C, we do the same thing we did to find m∠B. m∠C is directly across from m∠A - we have already found m∠A, and we know that it is 112°. Therefore, m∠C is 112° as well....