501 Geometry Questions

214. z= 21 2 .Plug the measurements of ΔBEC into the Pythagorean
     theorem: 21^2 + 21^2 = z^2. 441 + 441 = z^2. 882 = z^2. 21 2 = z.


215. Obtuse.You could just guess that m∠BGC > 90°. However, the
     question wants you to use the Pythagorean theorem to show
     (7 10 )^2 + 14^2 < (21 2 )^2.

501 Geometry Questions