Year help: Math problem.

anythingwhatever

Math problem.

So I recently came across this math problem: http://thinkzone.wlonk.com/MathFun/Tr...

Maths has never been my strong point, in fact its been three years since I studied maths and that was a a fairly basic level. Since then, unfortunately, I have forgotten everything I know.

So, how does one solve he above?

This open post was written 1 year, 11 months ago | V/U/S: 495, 15, 3 | Edit Post | Leave a reply | Report Post

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Since writing this post anythingwhatever may have helped people, but has not within the last 4 days. anythingwhatever is a verified member, has been around for 3 years, 1 month and has 116 posts and 918 replies to their name.

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mathematics, Year, strong, Fact, Point, Level, Forgotten, BASIC, math problem (How Tags Affect Reciprocity)

Replies (15)

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upanddowncelltow #
Flagstaff, AZ, US | 1 year, 11 months ago (5 minutes after post)

its actually fairly easy,solve the angle 50 for the triangle closet to the bottom.The aqnglke opposite that must be the same.then 2 x50=100 for the 2 angles.subtract from 360. you get 260.Divide that by two. so easch angle for the two side triangles is 130.then the ;left triangle equals 40 then cuz thts whats left out of 180.then 30 for the right side triangle.the middle triangle has a 90 degree angle,plus 50, subtrat the total from 180 and there ya go : )

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anythingwhatever 1 #
Edinburgh, U8, GB | 1 year, 11 months ago (13 minutes after post)

upanddowncelltow wrote:
solve the angle 50 for the triangle closet to the bottom.The aqnglke opposite that must be the same.then 2 x50=100 for the 2 angles.subtract from 360. you get 260.Divide that by two. so easch angle for the two side triangles is 130.then the ;left triangle equals 40 then cuz thts whats left out of 180.then 30 for the right side triangle.

Now, I have got that far myself.

upanddowncelltow wrote:
the middle triangle has a 90 degree angle,plus 50, subtract the total from 180 and there ya go : )

While that works, can be be sure it is a right angle? I mean it *does* look roughly like one, but if it was, surly it would be marked?

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upanddowncelltow #
Flagstaff, AZ, US | 1 year, 11 months ago (15 minutes after post)

lol comon just go easy on me im a slackerXD
fine fine ill solve the whole stupid thing/…gimme a sec…

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anythingwhatever 1 #
Edinburgh, U8, GB | 1 year, 11 months ago (17 minutes after post)

LOL, it does work, but still, I would have thought there would have been some fancy mathy way of working it out - rather than just assuming that it is a right angle….

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upanddowncelltow #
Flagstaff, AZ, US | 1 year, 11 months ago (19 minutes after post)

lol nvm i got the actual answer,which is still 30. because i found out it is a right anglke,want a walkthrough how i did it?

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anythingwhatever 1 #
Edinburgh, U8, GB | 1 year, 11 months ago (22 minutes after post)

go for it

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upanddowncelltow #
Flagstaff, AZ, US | 1 year, 11 months ago (22 minutes after post)

solve for the entire triangle. 60+20=80 70+10=80 80+80=160 180-160=20 thats the topmost angle.now the 40 degrees in the bottom left triangle converts over to the top triangle because it is linear point angle. 40+20=60 180-60=120 nw the entire side line angle equals 180 ,so minus 120 and 30 and bam. 30 is x

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anythingwhatever 1 #
Edinburgh, U8, GB | 1 year, 11 months ago (27 minutes after post)

You see, the hint on the website says the following:

website wrote:
To solve the problem, you will need to draw a few more lines inside the triangle.

You will need to do more than merely adding and subtracting angles.

The solution has more steps than you might expect.

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upanddowncelltow #
Flagstaff, AZ, US | 1 year, 11 months ago (28 minutes after post)

hmm…damit.im pretty sure that right though.
lol well i gave it my two cents good luck from here : )

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anythingwhatever 1 #
Edinburgh, U8, GB | 1 year, 11 months ago (33 minutes after post)

thanks anyway.

anyone else?

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anythingwhatever 1 #
Edinburgh, U8, GB | 1 year, 11 months ago (44 minutes after post)

Just so you now, I do have actual university work which is a lot more important , but for the first time in my life I genuinely want to know the solution to a math problem.

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mou 2 #
AQ | 1 year, 11 months ago (3 hours, 27 minutes after post)

The answer is x=20, though I admit to help from my math-whiz brother. (It’s genetic, you see.)
Geometry is my absolute worst math subcategory, so I’m darning Ross to Heck.

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