Here, she discusses two with Oprah. Watch to find out why Dr. Brown says inauthenticity is contagious and why perfectionism is really another form of fear. For more Super Soul Sunday, visit http://www.oprah.com/SuperSoulSunday.
Midsegment Theorem Proof. The mid segment theorem states that a segment that connects the mid points of any two sides is parallel to the third side and also its measure is half the measure of the third side. That is, DE ll AB and DE = $\frac{1}{2}$ AB. Therefore, CA = CD + DA = 2 CD.
A trapezoid midsegment connects the midpoints of the two congruent sides of the trapezoid, and is parallel to the pair of parallel sides. The length of the midsegment is the sum of the two bases divided by 2. Remember that the bases of a trapezoid are the two parallel sides. To find angles within a trapezoid, remember that since there are two sides are parallel, the other sides can be seen as transversals, forming corresponding angles and same side interior angles.