Geometry Basics: Shapes and Symmetry

Questions and Answers

A shape without any math attached to it (correct)

A shape with a line of symmetry

A shape with a fixed number of sides

A shape with a specific mathematical formula

A line that cuts the shape into three equal parts

A line that runs perpendicular to the shape

A line that splits the shape in half so that each half is the mirror image of the other (correct)

A line that runs diagonally through the shape

One

Four

Two

Infinite (correct)

Two Signup and view all the answers

They all have a line of symmetry Signup and view all the answers

It has two lines of symmetry. Signup and view all the answers

One Signup and view all the answers

The halves will overlap in certain areas. Signup and view all the answers

By folding it in half sideways. Signup and view all the answers

It has halves that match up perfectly when folded in half. Signup and view all the answers

Study Notes

Geometric shapes are shapes without any math attached to them, e.g. a circle drawn on a billboard.
Examples of geometric shapes include triangles, squares, octagons, and curvy shapes.
Even the shape of a dog's shadow is a geometric shape.

A line of symmetry is a line in a shape that splits it in half, with each half being a mirror image of the other.
The line of symmetry in a circle goes through the center of the circle, dividing it into two identical halves.
Geometric shapes can have more than one line of symmetry.

A circle has an infinite number of lines of symmetry, as it can be folded in many ways, as long as the fold goes through the center.

The capital letter A has one line of symmetry, which is when it is folded in half sideways.

To find the lines of symmetry in a shape, try folding it in different ways to see if the halves match up perfectly.
Start folding different shapes to discover more lines of symmetry.