4.6ABCD

In which drawing does line m appear to be perpendicular to line k?

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Oscar draws two lines on his paper. The lines are always one inch apart and do not intersect. Which term can be used to name what Oscar drew?

• Perpendicular lines

• Parallel lines

• Intersecting lines

• Line segments

Which line segments form a right angle?

• Line segments AG and CD

• Line segments BC and CD

• Line segments DE and EF

• Line segments AG and FG

Which figures appear to have 2 or more lines of symmetry?

• Figures K and L only

• Figures M and N only

• Figures K, L, and N only

• Figures K, L, M, and N

Which figure appears to have exactly 1 line of symmetry?

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Lela made a triangle that had one 90° angle and two acute angles. Which term describes Lela’s triangle?

• Right triangle, because there is one 90° angle

• Acute triangle, because there are two acute angles

• Obtuse triangle, because the largest angle is obtuse

• Right triangle, because all three angles are 90°

Ruth sorted polygons into groups. The polygons shown belong in the same group. Which description best represents this group?

• Polygons with perpendicular and parallel lines

• Polygons with perpendicular lines only

• Polygons with acute and obtuse angles

• Polygons with obtuse angles only

Liza drew a figure on the front of her notebook that has two obtuse angles. Which figure could be the one Liza drew?

• Rectangle

• Obtuse triangle

• Parallelogram

• Right triangle

Which figures appear to be rectangles?

• Figures Q and S

• Figures R and S

• Figures P and R

• Figures P and Q

Which figure cannot have parallel line segments?

• Square

• Pentagon

• Triangle

• Trapezoid