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.
The midsegment of a trapezoid is referred to as the median or the midline. The length of the midsegment is calculated by finding the average length of each of the parallel sides. The formula for this length is the sum of the length of side A plus the length of side B, divided by two. The midsegment is also used to calculate the area of a trapezoid. Learn more about Shapes.