Question

Help me Please!!!

Answer 1

@ranga

Answer 2

I need help with three more questions do you think you can help me with them??

Answer 3

Post them here one at a time and I will try.

Answer 4

Are you going to post now?

Answer 5

Triangle DOG was rotated to create triangle D'O'G''. Describe the transformation using details and degrees. Imagine points D and D' were two points on a circle named O that had the origin as its center. Now imagine points O and O' were to also lie on a circle named T with the origin as its center. What type of circles would O and T create?

Answer 6

sorry I was eating

Answer 7

the second question

The figure below shows two congruent triangular parks. What equation would help you to solve for the side length of BC and EF? Explain your reasoning using complete sentences.

Answer 8

this is the first question pic

Answer 9

In the first picture, what they have ended up doing is reflections on both the x axis and the y axis. (x,y) has become (-x, -y) for all three points.

Answer 10

Reflection and both x and y axes together is also called the reflection about the origin.

Answer 11

Yeah that was the question i got wrong because my dumb substitute so she making me do the whole assignment again --____--

Answer 12

They say "Describe the transformation using details and degrees"

To get to D' from D, the point D is rotated 180 degrees with the origin as the center.
To get to O' from O, the point O is rotated 180 degrees with the origin as the center.

"What type of circles would O and T create?"
The two circles will be concentric (meaning same centers) and the origin will be the center.

Answer 13

Ohh ok well good that i got the 180 degrees right

Answer 14

For the second problem, the two triangles are congruent which means they have the exact same three lengths for the sides. And therefore ....

can you tell me what the equation should be?

Answer 15

2x-3=x+5

Answer 16

They tell you the triangles are congruent that means they have the exactly same three sides.
Looking at the diagram we can see:
AC = FD = 9
AB = ED = 17
Therefore, CB and EF must be the same. CB = 2x - 3 and EF = x + 5
So the equation is: 2x - 3 = x + 5

Answer 17

Yes. You got it right.

Answer 18

Yay! cause i was scared that i was getting it wrong

Answer 19

Good. You got all your questions answered?

Answer 20

theres one more and then im done for geometry.

Answer 21

last question

Determine if the two figures are congruent and explain your answer. If they are congruent, tell which rigid motions were used.

Answer 22

That one i was very confused

Answer 23

Square of the distance between two points = square of x difference + square of y difference.
Compare the lengths of CB and GF. Are they equal?

Answer 24

Yes they are equal

Answer 25

Compare CD and GH; AD and EH; AB and EF

Answer 26

yeah the all have equal sides but just position differently

Answer 27

That means the two figures are congruent.
You may have to explain in detail why you think the two sides such as CD and GH are equal. It could be something like: to go from C to D I have to take two units to the left along the x axis and 4 units down along the y axis. so the distance CD = sqrt(2^2 + 4^2)
You can do the same with GH and say GH = sqrt(4^2 + 2^2) and so CD = GH

Answer 28

Thank you so much for helping me :)

Answer 29

Whats ''sqrt"
??

Answer 30

square root

Answer 31

ohh and what about ''^''?

Answer 32

exponent.

Answer 33

ohh ok well again thank you

Answer 34

This is what I meant:
\[\Large CD = \sqrt{2^{2} + 4^{2}}\]

Answer 35

ohh ok that makes alot of scene

Answer 36

Distance between two points: \[\Large (x _{1}, y _{1})\] and \[\Large (x _{2}, y _{2})\]
Distance formula:\[\Large d = \sqrt{(x _{2} - x _{1})^{2} + (y _{2} - y _{1})^{2}}\]

Answer 37

That is the formula we used to calculate the length of CD. Square the difference in x coordinates and add it to the square of the differences in y coordinates and take the square root.

Answer 38

There is one more part to this question: "tell which rigid motions were used"
So you have to describe how to move the first figure to get to the second figure.

Answer 39

I think its a refflection

Answer 40

Just one simple reflection won't make the first figure look like the second. There is a little bit of turning and sliding involved.

Answer 41

There are so many ways to do it that there may not be just one answer.

Answer 42

well its fine thanks again

Answer 43

Okay. This is how I will move the object: Slide the top object down by 1 unit until D and H are the same point. Then rotate the figure clockwise until C and G align. Then flip it over 180 degrees.

Ok. You are welcome.