Using Stewart’s Theorem, prove the following useful fact about an angle bisector of a triangle. (I call it the second half of the Angle Bisector Theorem.) In the Trinagle ABC , if AD bisects Angle BAC , then prove that : : : : :d^{2} = bc - mn

What makes a trapezoid an isosceles trapezoid?

Thirteen bowlers were asked what their score was on their last game. the scores are shown below 190,150,154,194,181,190,170,151,170 ,178,161,180 find the range of the bowlers score a.56 b.44 c.34 d.23

Shown here are the three essential steps in a proof of the pythagorean theorem. comparing the 1st and 3rd steps how are the colored regions related as to the areas? a. yellow+blue=orange b. orange=yellow=green c. yellow+blue=green=orange d. yellow+green=orange+blue