Geometry Formulas Sheet
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Geometry! Help! Formulas destroyed, need new ones! (will choose best answer.)?
Can someone please give me the formulas for the following qs?! I don’t necessarily need the answer directly (altho that would be nice… =D ) I just need the formulas. My sweet little sister *surpresses growl* THREW MY SHEET in the FIRE… so I have no idea what the formulas are anymore. Help?
1. If the diagonals of a rhombus are 13 cm and 8 cm long, find the area of the rhombus.
2. The volume of a larger prism is 168 cubic cm. If the prisms are similar with linear ratio of 3:2, what is the volume of the smaller prism?
3. Find the sum of the measures of the interior angles of a convex 12-gon.
4. Find the area of a sector defined by a central angle of 36 degrees and a radius of 10 cm.
I know these probably sound TOTALLY simple… and I should/could probably be able to figure out the formulas myself if I took the time… but I have very little time and so any help you can give me would be VERY appreciated!
Geometry test review problem???
A sphere has a surface area of 282 cm squared what is its radius to the nearest 10th of a centimeter?
***So we have this big formula sheet. With how to find SA LA and the volume of shapes I just don’t know how to figure this problem its seems in reverse can you give me a way to figure this out do I just divide or times something???
http://en.wikipedia.org/wiki/List_of_geometry_topics
SA of sphere = 4pir^2
So r = sqrt(SA/4pi) = sqrt(282/4*3.14) = 4.7 cm
geometry class?
i am going into my sophmore year in high school.
last year, i was in algebra 1, but i was misplaced in that class and shouldve been in a higher level.
this summer, me and a friend are planning to be tutored in geometry, so that next year we will be in the correct level of math (algebra II/Trig).
we arranged for a tutor, and we met with her once before we took out algebra I final.. now, it is a few weeks into summer, and our tutor has gone on vacation without further notice, and wont be teaching us until june. we will probably be going 3-4 days a week, and have homework. our tutor said that it is mostly in the notes that you take, you get a full sheet of notes on the theorums and formulas for the final. in order to get into algebra 2, i must get a 90% on the geom. final, at least. has anyone else done this before? she said shes done it with 10 students, and only one got an 80% and couldnt take the class he wanted.
will it be hard to learn in 2 mnths? im a v. dedicated student
i want to take it this year, since it would be impossible to take any other class during the summer (such as algebra II), so this is the last year i can skip ahead
and the reason im doing it is that im in IHS, and when im a senior, in order to take my math IB, i must have taken calculus already, so i must be in the higher math.
i do have a textbook, but i can only use notes when i take the final
It depends on the person. Some people can learn the skills taught in math classes very quickly and without any effort while others may have to take a course more than once and put in a lot of time at home to barely make a passing grade.
However, as far as geometry, I remember it being more of an easier math course compared to others that I had in high school.
Study hard though! Geometry teaches you the fundamentals that you will use for the rest of your life. I’ve had physics I and II, statics, dynamics and other courses where I constantly use the things I learned in geometry.
good luck!
Please see my answer to your previous question …
http://answers.yahoo.com/question/index;_ylt=AllryIaznKJ1Zi9wX73YuFjsy6IX?qid=20070603131319AADFuCx
I actually thought that you were asking high school chemistry info … I agree with ♫ayayay♫: look at your textbook, read your notes, ask that smart kid in your class a few questions, and TALK TO YOUR PROFESSOR!!!
Geometry Questions?!?
I have a geometry test coming up this Sunday and theres a few questions on the review sheet i’m totally confused and dazed with! I don’t remember them at all, any help will be apperciated
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1. The end points of segment AB are A( 7/3, -2 ) and B ( 5,6 ); I know how to do midpoint formula, but how do i do it iwth a fraction?!
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2. The midpoint of VW is M(-1,-2) one end point is W ( 4,4 ) find the coordinates to endpoint V
3. In the diagram below, If RS = 2X + 7 and ST = X + 19 find the numerical value of RT
If Y is between X and Z on Line XZ and the XZ = 46 and XY = 23.5, is Y hte midpoint of XZ? Explain your answering
thank you all even if you answer only one
1) You use the midpoint the exact same way, you just have to remember how to do fraction addition and divisoin
2) This time use the midpoint formula and work backwards. You can guess and check, but using algebra is a better way of doing it.
3) I don’t see a diagram below, but this is basically an algebra problem.
Another molecular models of atoms question- should be fairly easy if you know chem well.?
Alrighty. We are doing molecular models of atoms in class. I am totally flippin lost. We were given a practice sheet to do. I’m still lost. Basically, I have a list of molecules. The list is:
HgBr2
PO3 -3
CH2Br2
S2O3 2-
No2-
BrF3
NH4 +
BrO3-
AsF5
ICl3
SeF4
XeF4
And for each of these I need to know the:
-Dot requirement
-Dot formula
-Electronic geometry
-Molecular geometry
-Whether each molecule is semetrical or not
-Whether each molecule is polar, or not
-The distribution of electrons in shells beyond its “base” noble gas
-And the hybridization of each molecule
Anyone know how to figure these out/have any tricks. I enrolled in a chem 2 course after taking AP in high school, and I’m waaaaaaay over my head. I realize this is a lot to ask but I’m so lost and could really use the help/any tricks to figuring this out. Thanks.
Keep in mind that I’m a wee bit dense, so explain this step by step, I’d appreciate it . You rock.