Points a b and c ate noncollinear so therefore they are noncoplanar

Which of the following expressions is equal to 2x^2+8

Segment wx is shown explain how you would construct a perpendicular bisector of wx using a compass and a straightedge

Two poles, ab and ed, are fixed to the ground with the of ropes ac and ec, as shown: what is the approximate distance, in feet, between the two poles? 6.93 feet 8.66 feet 12.32 feet 15.59 feet