Symmetry
Is it possible to have two types of symmetry on one figure? (ex: reflection and translation.)
Yes
What is symmetry?
When one half of a figure is reflected to make the other half.
What is a rotation?
When a figure is
What is a translation?
The process of moving the exact same figure to a new location.
What is a dilation?
When a figure is changed in size but the angles and side lengths stay the same.
How many types of symmetries are there?
3, rotations, transnational, and reflection.
Does this emoji have symmetry?
😑
And if so what type of symmetry?
(Get One Part Wrong, Half points)
Yes, reflectional symmetry.
Someone has 1/4 of a circle and whats to make a full circle. How many 90* degree turns does he have to make a full circle?
He has to make 4 90* degree turns.
Jeff makes a triangle with the starting point at (2,3). If he moves the triangle🔺 two places to the right and 4 up. What is the new place of the starting point?
(4,7)
If the coordinate of huge drawing is (24,50) and there is a scale factor of 1/2 what is the new location?
(24/2, 50/2) = (12,25)
🙌What type of symmetry is the emoji?
Reflectional.
True or False: You can Refect an image more than once.
True.
Imagine you bought an eight slice pizza🍕. How many times and degrees did the 1/8 of pizza make in order to make a full pizza? Including the starting slice.🍕
(half points if one part is wrong. Degrees and Rotations)
The slice🍕 has to make 8, 45* degree rotations.
True or False: When making a translation, you can only move the image across the x-axis.
False, you can move it across both axes.
If an image has one point at 2,4 and then you use a scale factor of 2 will the point be at 1,2? Is the person wrong or right?
No, the person is wrong because he used a scale factor of 1/2.
Is the following emoji an example of symmetry?
😰
No, the emoji needs to have a sweat drop on both sides.
Can you name two real-world examples of reflectional symmetry?
Host's decision.
Which of the following shapes has rotational symmetry?
🟥, 🔺, 🔴, or 🛑
The square 🟥, circle🔴, and hexigon🛑 all have rotational symmetry.
Give an example of a translation.
Host's decision.
Can you show how the rule works for a dilation?
(*Hint*#=number)
(x,y)-(#x,#y)
Bouns: Is this emoji an example of symmetry?
🎭
No, the mouths change.
Bouns: When making a reflection, is the distance of the points the same from the line of symmetry on both sides?
Yes.
Bouns: What formula can you use to find the new coordinates of a figure?
A(x, y)-(y, x) Depending on the quadrant it's in you
B(x, y)-(y, x) now make the x, y positive or
C(x, y)-(y, x) negative.
Bouns: How could you make a translation?
Host's decision.
Bouns: How do you make translations?
Host's decision.