Question

@karatechopper help please
Which letter has at least one line of symmetry?
F,Z,W,S

Answer 1

A line of symmetry is hard to describe without using the term itself in the definition. Here's my best simplification:

A line of symmetry is a line that makes something mirrored on both sides.

Answer 2

So imagine a line going up and down through the centre of the letter Y.

That would be a line of symmetry.

Answer 3

thank you do the answer would be W then right based of the definition you gave me

Answer 4

Correct!

Answer 5

so the answer is W or Y

Answer 6

W. Y was just an example :)

Answer 7

thank you can you help with another problem

Answer 8

Here is another example I have for you.

X, R, K, J <-- Which have lines of symmetry and which don't?

Answer 9

https://pwnd9373-ndscholarship-ccl.gradpoint.com/Resource/630568,72F,0,0,0,0,0/Assets/testitemimages/geometry_b/circles/mc004-1.jpg
O is the center of the circle. Assume that lines that appear to be tangent are tangent. What is the value of x?

Answer 10

X and K are line of symmetry and J and R isnt

Answer 11

:) Completely right!

Answer 12

can you help me

Answer 13

https://pwnd9373-ndscholarship-ccl.gradpoint.com/Resource/630568,72F,0,0,0,0,0/Assets/testitemimages/geometry_b/circles/mc004-1.jpg
O is the center of the circle. Assume that lines that appear to be tangent are tangent. What is the value of x?

Answer 14

To solve that example you need to remember one fact.

This fact is that if you add up each of the 3 angles in ANY triangle you should get 180degrees.

Answer 15

Because the line PQ is tangent and O is in the centre of the circle, you know that the angle in the Q corner is 90degrees.

Answer 16

\[use C^2=A^2+B^2\]

Answer 17

so that means the other anlge=78