1) What type of angle is formed by the intersection of two perpendicular lines? a) Acute b) Obtuse c) Right d) Straight 2) If lines a and b are perpendicular to line c, what word best describes how lines a and b relate to each other? a) Intersecting b) Parallel c) Perpendicular d) skew 3) The symbol ┴  is used to show that lines are a) Parallel b) Perpendicular c) Skew d) Intersecting 4) The symbol || is used to show that lines are a) Parallel b) Perpendicular c) Skew d) Intersecting

Parallel and perpendicular lines

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