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David wants to make a description to some architects about the design he wants for his country house. The following diagram shows the lines that represent the walls.
Help David to fill the chart next to it identifying the given pair of lines as either parallel, perpendicular, or intersecting.
a) Line SB and Line RU are lines.
b) Line XZ and Line SB are lines.
c) Line CQ and Line RU are lines
d) Line RU and Line LF are lines.