MathematicsFreePrintable
Geometry Shapes and Properties
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Geometry Shapes and Properties
Help Camila and Mateo sort shape designs for a set of custom stamps at the post office. Use side and angle properties to solve each challenge. A quadrilateral is a shape with four straight sides.
Stamp Design Clues
Look closely at each shape before deciding which properties fit.
1.Camila needs a stamp with exactly four equal sides and four right angles. Which shape should she choose?
- Rectangle
- Square
- Rhombus
- Trapezoid
2.Mateo sketches a triangle with three sides of different lengths. What kind of triangle is it?
3.A rectangular stamp has four sides. Select every property that must be true of a rectangle.
- It has four right angles.
- Its opposite sides are parallel.
- All four sides are equal.
- Its opposite sides are equal in length.
4.The stamp tray has designs shaped like a triangle, square, pentagon, rectangle, and circle. Which two designs are quadrilaterals?
Compare and Build
Use what the shapes have in common—and what makes each one different.
5.Camila compares a square stamp with a rhombus stamp. Name one property they share and one property that may differ between them.
6.Draw and label a regular pentagon for a new stamp. It must have exactly five straight sides, all the same length, and five equal angles.
7.True or false: Every square is a rectangle, and every rectangle is a square. Explain your choice.
Shape Sorting at the Post Office
Apply shape properties to help plan the stamp collection.
8.A customer requests a four-sided stamp with opposite sides equal and parallel, but with sides that are not all equal. Name one shape that fits the clues.
9.Andre sorts a shape with four sides, exactly one pair of parallel sides, and no right angles. What is the most specific name for this shape in the usual US school classification?
10.Write a riddle for a shape using at least three properties, then name the shape. Make sure your clues point to one clear answer.
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