Math

I am trying to help my son in Algebra, the only thing is that I have forgot some of these thing.He has a word problem I can not figure it out please help a mother help her 9th grader.

Q- The polygons below are similar. Find the unknown side lengths if c=24. Each measure is in centimeter. Express you answers in decimals. The Diagram measures 16,20,24,28. Please help how to figure this out. I think the formula is 180(x-2) is this correct and if so do I do the following 180(24-2) which = 180(22)=3960 I do not know how to put it in decimals.

  1. 👍
  2. 👎
  3. 👁
  1. One of the problems here is that we can't show diagrams.
    When you say "The polygons below are similar", we can't know what shapes you are describing.
    From the 4 sides you give, I would assume you have a quadrilateral (4 sides), but I don't know what you are trying to find, is it angles?

    the formula 180(n-2) is for the sum of the interior angles of a polygon, where n is the number of sides.

    by doing 180(22)=3960 you found the sum of the inside angles of a 24 sided figure, somehow I don't think that is what you wanted.

    1. 👍
    2. 👎
  2. it is a four sided where 16 is replaced by c=24 and d=20,e=24,f=28. It goes and on and ask to find the unknown side lenghts if c=24. Each measure is in centimeter. Express your answers in decimals. That is the whole question.

    1. 👍
    2. 👎
  3. One of the properties of similar figures is that corresponding sides are in the same ratio.

    are you saying that the value of 16 in the first figure is now 24 in the new one?
    If so, then form the ratio 24/16 and set it equal to the fraction for another matching pair of sides.

    eg. perhaps you want to find the side of the first figure that matches with the sides labeled 20 in the second

    put 24/16 = 20/x
    cross-multiply 24x = (16)(20)
    x = 13 1/3

    Hope this helps

    1. 👍
    2. 👎
  4. 16 and 24 just convert them into decimals

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. English

    Please check my answer. I'm not sure which is right because I'm pretty sure every father feels the need to do all of the below. Read the following sentence from "No Dogs Bark." "I'll get you to Tonaya. There I'll find somebody to

  2. math

    the sum of a number and 3 times that number is 76. what is that number? PLEASE HELP ME I DON'T GET IT!!!!!!!! Mathematics is a language, so translate the English into "math" let the number be x "the sum of a number and 3 times

  3. age question

    A man is 24 years when his son was born. Now he is three times as old as his son. Find the age of the son.

  4. Maths ( Higher Level) Simultaneous Equations.

    A mother is x years old, her son is y years old and the sum of theirs ages together is 58 years. Five years ago, the mother was five times as old as the son. Write two equations in x and y and solve them to find the age of their

  1. word problem

    a woman age and her son added to 45, 5 years ago the woman was 6 times as old as her son. how old was the woman when the son was born.

  2. Algebra

    I am having a problem with solving a composite function in Algebra 1 How do I solve f(x) = -2x + 1 and g(x) = 4x? Don't I need more info? No, that is all you need. I it unclear what you want to do here. see

  3. Aglebra, math

    Hi I really need help with this question and I don't know a thing about algebra!!! If anyone can help me understand this that would mean a lot! So here's my question. Brad says that the literal equation a = 3b + 4c - a is solved

  4. Spanish 1

    Which expression means the same as this one: ¿Son las siete menos veinte? A. Son las siete y veinte. B. Son las ocho y veinte. C. Son las seis y cuarenta. D. Son las siete y cuarenta. B?

  1. 3 grade english

    write sentence about desert animals. use each given word in the past tense. they give word find, think, run, go, take my son write- a kangaroo rat needs to find nuts to survive. my son write- i think a rattle snake can confuse

  2. English

    Read the following lines from “Mother to Son”: So, boy, don’t you turn back Don’t you set down on the steps ‘Cause you finds it kinder hard. What advice is the mother giving with the metaphor used in these lines? A. Son,

  3. Algebra

    I am getting ready to start an Algebra class for the first time and I was wondering what challenges people have with learning and using algebra concepts. Also what are the best ways to over come math anxiety? The best way? Learn

  4. algebra 1

    at a certain high school,350 students are taking algebra. the ratio of boys to girls taking algebra is 33:37. How many more girls are taking algebra than boys? - How can you write a system of equations to model the situation? -

You can view more similar questions or ask a new question.