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Geometry in Everyday Things Some common shapes You see these shapes in many places. A triangle has three sides. A square has four equal sides and four right angles. A rectangle has four sides and four right angles. A circle has a center point and an outer circumference. More shapes A pentagon has five sides. A hexagon has six sides. An octagon has eight sides. What shape do you see in the musical instrument? Square Triangle Rectangle Mouse House Send your mouse home until the teacher calls on you. What shape is the door? Rectangle Square Hexagon Mouse House Discuss: What other shape do you see on the door? What shape is the full moon? Square Octagon Circle Mouse House What shape does a sand dollar remind you of? Circle Triangle Pentagon Mouse House A pyramid is made up what shape. Rectangle Triangle Circle Discuss: If a pyramid had 4 sides, what would the base (bottom) resemble? Mouse House What shape is the drawer of the file cabinet? Triangle Circle Square Mouse House Discuss: What shape is the side of the file cabinet? Do these snowflakes resemble hexagons? Snowflakes Yes No Mouse House What shape does a stop sign resemble? Square Circle Octagon Mouse House