Seneca Valley School District / Overview



Name _________________________________1.2 Worksheet #2Points, Lines & Planes345757535623500Find the intersection of the following lines and planes in the figure at the right. If there is no intersection, write no intersection. (Hint: Only one answer is no intersection.)GK and LG_________________Planes GLM and LPN_________________*Planes GHPN and KJP_________________Planes HJN and GKL_________________KP and plane KJN_________________*KM and plane GHL_________________Refer to the diagram at the right. If there is no intersection, write no intersection. (Hint: Only one answer is no intersection.)41465504318000Name plane P in another way. _________________Name plane Q in another way. _________________4371975208915Q020000QWhat is the intersection of planes P and Q? _________________443865050165Are A and C collinear? _________________569595097155P020000PAre D, A, B, and C coplanar? _________________58007255080Are D and C collinear? _________________What is the intersection of AB and DC? _________________Are AB and plane Q coplanar? _________________Describe two intersecting planes in your classroom. Describe their intersection.Photographers and surveyors use a tripod, or three-legged stand, for their instruments. Use one of the postulates to explain why.Draw a figure with points B, C, D, E, F, and G that shows CD, BG, and EF with one of the points on all three lines.If possible, draw a figure to fit each description. Otherwise, write not possible.Four points that are collinearTwo points that are noncollinearThree points that are noncollinear43815004508500How many planes contain each line and point?EF and point G ___________PH and point E ___________* FG and point P ___________* EP and point G ___________Make a conjecture: What do you think is true of a line and a point not on the line?Use postulates to explain each situation.A land surveyor can always find a straight line from the point where she stands to any other point she can see.A carpenter knows that a line can represent the intersection of two flat walls.A furniture maker knows that a three-legged table is always steady, but a four-legged table will sometimes wobble. ................
................

In order to avoid copyright disputes, this page is only a partial summary.

Google Online Preview   Download