Hello, math explorers! Grab your binoculars because we’re taking a trip around the world to find symmetrical objects. Symmetrical is when one half of an object is the mirror image of the other half.
A line of symmetry can help us see if something is symmetrical. This line divides a figure into two equal parts that are mirror images.
To find a line of symmetry, draw a line down the center. If you fold a shape along a line of symmetry and each part matches up exactly, it’s symmetrical.
If you fold the shape and it doesn’t match, it’s not symmetrical.
Jump aboard, and let’s go!
We’re at the Eiffel Tower in France. It reminds me of a triangle. Draw a line of symmetry down the center. Are the two parts equal? Yes! Do they mirror each other? Yes!
The Eiffel Tower is symmetrical.
Check it out! Big Ben in England looks like a rectangle. Come along and see if it’s symmetrical. Are the two parts equal? Yes!
Do they mirror each other? Yes!
Big Ben is symmetrical.
Woo-hoo! We’re at the Australian Zoo. Use lines of symmetry to see if these animals are symmetrical.
Are the two parts of the crab equal? Yes! Do they mirror each other? Yes! The crab is symmetrical.
Are the two parts of the tiger equal? No. Do they mirror each other? No.
The tiger is not symmetrical.
Hold on tight for a ride through an African safari. Let’s find out if the letter A is symmetrical. Draw a line of symmetry down the center and fold it. The letter A is symmetrical because the two parts match up.
What about the letter R? Draw a line down the center and fold it. The parts don’t match up. It’s not symmetrical.
What a trip! We found symmetrical objects all around the world.
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