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What's on the worksheet
- Use the window bars to write a statement with perpendicular and name the marked angle.
- Test each pair of segments with an index card or protractor to find the perpendicular ones.
- Find the angles made by Kofi's ruler leaning against the bookshelf.
- Hannah measures one crosswalk angle at 98 degrees: find the next angle and decide if the lines are perpendicular.
- Count the crossing points and right angles in Mason's tic-tac-toe grid.
- Ava folds paper so crease c lands on itself: what is true about the new crease d?
Teach it first
The free lesson teaches it with worked examples and practice problems.
Perpendicular lines: the lesson ›More Chapter 12 worksheets: Lines, angles, symmetry and classifying shapes
- 12.1Acute, right, obtuse and straight angles
- 12.2Perpendicular lines
- 12.3Parallel lines
- 12.4Classifying triangles
- 12.5Naming and classifying polygons
- 12.6Line symmetry