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.
According to this theorem mid segment of a trapezoid is equal to half of sum of its two parallel sides. In triangle ABC M is mid point of AB and P is midpoint of AC. so MP is mid segment of triangle ABC. similarly just apply this rule in triangle ACD the PN is midsegment of triangle ACD.