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Cyniez@lemmy.world to Asklemmy@lemmy.ml · 1 year ago

Can anyone solve this math for me?

lemmy.world

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Can anyone solve this math for me?

lemmy.world

Cyniez@lemmy.world to Asklemmy@lemmy.ml · 1 year ago
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  • HurlingDurling@lemm.ee
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    1 year ago

    Take a look at this page, it’ll give you not only your answer but explain how to solve it

    https://mathematicsart.com/solved-exercises/solution-find-the-distance-bc-quarter-circle/

    • Cyniez@lemmy.worldOP
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      1 year ago

      Thanks a lot

  • Transient Punk@sh.itjust.works
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    1 year ago

    X=15

    • Rentlar@lemmy.ca
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      1 year ago

      Note that the problem states that the outer shape is a quarter circle, information not provided in OP’s question.

      Knowing it is a quarter circle is important because it allows us to validate that the bottom-right angle is 90 degrees.

      • gezginorman@lemmy.ml
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        1 year ago

        but does it have to be a given, or can we actually prove that it has to be

    • breakingcups@lemmy.world
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      1 year ago

      Wow, that’s cool

    • newnton@sh.itjust.works
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      1 year ago

      Ooh clever

    • olosta@lemmy.world
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      1 year ago

      The explanation don’t explain why AE must be a diameter of the circle. What makes that obvious?

  • juliebean@lemm.ee
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    1 year ago

    if we assume the bottom right corner is a right angle and is the center of the arc, then it is solvable in the manners that others here have already described. if either of those is not the case, and the image itself doesn’t state, then there is insufficient information to solve it.

    • kalpol@lemm.ee
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      1 year ago

      deleted by creator

  • TheSlad@sh.itjust.works
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    1 year ago

    24 and 7 make a pythagorean triple with 25 as the hypotenuse. If the problem uses one pythagorean triple, it probably uses another, so I assume x is 15, and the radius is 20.

    • tomi000@lemmy.world
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      1 year ago

      Not the most complete answer, but definitely the fastest one^^

  • southsamurai@sh.itjust.works
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    1 year ago

    Jesus.

    Jesus is always the answer

  • 𝘋𝘪𝘳𝘬@lemmy.ml
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    1 year ago

    No, sorry, I’m dumb.

    • murd0x@lemmy.ml
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      1 year ago

      Hello dumb! I’m dad

  • Visstix@lemmy.world
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    1 year ago

    Well the drawing is wrong. I measured it with a ruler and it should be 9

  • Hozerkiller@lemmy.ca
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    1 year ago

    Spent too long trying to figure out if this was loss or not.

    • cRazi_man@lemm.ee
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      1 year ago

      Well? Is it?

  • xmunk@sh.itjust.works
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    1 year ago

    I assume you need to calculate the red triangle’s hypotenuse but it seems like there are too many degrees of freedom to lock down any of the other sides or angles of the triangle including X unless I’m missing some hack involving chords and reflected angles.

  • CalipherJones@lemmy.world
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    1 year ago

    I’ma go with 8 because it’s slightly longer than 7

  • double_quack@lemm.ee
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    1 year ago

    Sequence of lines to focus on to get to the answer

    making the BOLD ASSUMPTION that the angle of the arch is 90deg (the bottom right corner of your diagram), then the dashed lines will lead you to the value of the bold line.

    If the original assumption is correct, then the answer is 15.

  • UltraGiGaGigantic@lemmy.ml
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    1 year ago

    Shouldn’t the person who to lazy to measure x solve this?

  • ramble81@lemm.ee
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    1 year ago

    The two red lines are at a right angle, you can connect them and solve for the hypotenuse using the normal a^2 + b^2.

    At this point you now have a second triangle that contains the X you want. Also, since the outer shape is a quarter-circle (assumed) you know that the corner in the bottom right is 90 degrees which makes the two side equal in length.

    Since it’s an equilateral triangle, and you know the hypotenuse, you can back it out with c^2 = 2a^2 and solve it that way.

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