Missing Lengths and Angles in Rectangles
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Missing Lengths and Angles in Rectangles
Missing lengths and angles in rectangles worksheet for Grade 5: six rectangles drawn to size, two sides from the opposite side, two from the perimeter, and two angles to find. With an answer key.
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- Pages
- 1
- Last updated
- Time
- About 15 minutes
- Answer key
- Included
- Printing
- Black and white
- Related curriculum
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Sort quadrilaterals and triangles by their sides and angles, see that every square is a rectangle and a rhombus, and place figures in a hierarchy.
Reviewed by Mrs. Catherine Reynolds, Teacher. How we check worksheets
How to use this sheet
- Have the child count the sides and the corners of each shape, marking each one, before naming it.
- Look for shapes around the room after the sheet: the windows, plates and signs.
- Ask "How do you know?" for every name. The number of sides is a better reason than the look.
Common mistakes
- Thinking a triangle must point up, or a square turned on its corner is a diamond and not a square. Turning does not change a shape.
- Calling a shape a triangle when it has a curved or open side. A triangle has three straight sides that meet.
- Thinking a square is not a rectangle. A square is a rectangle with all four sides the same length.
