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.
Triangle Congruence Theorems. 1  There area number of congruence theorems for triangles based on the criterion considered. 2  Two triangles are said to be similar if the three angles of one triangle are congruent to three angles of another. 3  This theorem is commonly known as the mid segment theorem.