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Can you solve this 6th grade math problem?
#1
Can you solve this 6th grade math problem?
Just saw this on youtube... after the first 10 seconds, I got it... then noticed that the video was 9 minutes long! O.o

All you brainiacs take it easy and let's see how others do it! Tongue

THE PROBLEM:

Find the total area of the red spots.

[Image: 6thGradeMaths_zpsjlztzbcf.png]


That's a normal rectangle, with two equal circles inside.
Looks odd, at first, but it's remarkably simple.
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#2
RE: Can you solve this 6th grade math problem?
What do you mean? What am I supposed to answer?

It's the lower half of the rectangle minus the area of the circles.

Is that it?

Ok, it's the area taken up by half of the rectangle minus the area taken up by a full circle.

I don't know the actual math, but that's it, right?
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#3
RE: Can you solve this 6th grade math problem?
Here's how I did it:

The area of the rectangle is 200, lower half that is 100.  The area of one circle is r^2(pi), or 5x5x pi = 78.5.

100-78.5 = 21.5

Boru
‘But it does me no injury for my neighbour to say there are twenty gods or no gods. It neither picks my pocket nor breaks my leg.’ - Thomas Jefferson
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#4
RE: Can you solve this 6th grade math problem?
(August 14, 2016 at 6:35 am)BrianSoddingBoru4 Wrote: Here's how I did it:

The area of the rectangle is 200, lower half that is 100.  The area of one circle is r^2(pi), or 5x5x pi = 78.5.

100-78.5 = 21.5

Boru

So, what I said, only I said it in English.
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#5
RE: Can you solve this 6th grade math problem?
6 grader is wayyyyyyyyyyyyyyyyy beyond my math level.
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#6
RE: Can you solve this 6th grade math problem?
Ooh, people figured out the method right away. It's refreshing to be surrounded by people who have good problem solving skills for once. I need to avoid Facebook more.
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#7
RE: Can you solve this 6th grade math problem?
(August 14, 2016 at 6:42 am)Excited Penguin Wrote:
(August 14, 2016 at 6:35 am)BrianSoddingBoru4 Wrote: Here's how I did it:

The area of the rectangle is 200, lower half that is 100.  The area of one circle is r^2(pi), or 5x5x pi = 78.5.

100-78.5 = 21.5

Boru

So, what I said, only I said it in English.

If it will help you grasp it, I'll be happy to re-word it in pig Latin.

Boru
‘But it does me no injury for my neighbour to say there are twenty gods or no gods. It neither picks my pocket nor breaks my leg.’ - Thomas Jefferson
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#8
RE: Can you solve this 6th grade math problem?
(August 14, 2016 at 6:46 am)BrianSoddingBoru4 Wrote:
(August 14, 2016 at 6:42 am)Excited Penguin Wrote: So, what I said, only I said it in English.

If it will help you grasp it, I'll be happy to re-word it in pig Latin.

Boru

Are you claiming I didn't grasp it? Because I did. I described the solution, I just didn't provide the math. That menial task I reserved for someone else.
Angel
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#9
RE: Can you solve this 6th grade math problem?
(August 14, 2016 at 6:52 am)Excited Penguin Wrote:
(August 14, 2016 at 6:46 am)BrianSoddingBoru4 Wrote: If it will help you grasp it, I'll be happy to re-word it in pig Latin.

Boru

Are you claiming I didn't grasp it? Because I did. I described the solution, I just didn't provide the math. Go back and read my reply again.

You definitely nailed the method perfectly.
Reply
#10
RE: Can you solve this 6th grade math problem?
(August 14, 2016 at 6:52 am)Excited Penguin Wrote:
(August 14, 2016 at 6:46 am)BrianSoddingBoru4 Wrote: If it will help you grasp it, I'll be happy to re-word it in pig Latin.

Boru

Are you claiming I didn't grasp it? Because I did. I described the solution, I just didn't provide the math. Go back and read my reply again.

You made the claim that I didn't give my answer in English, so I was offering to help you out with your evident language issue.

Boru
‘But it does me no injury for my neighbour to say there are twenty gods or no gods. It neither picks my pocket nor breaks my leg.’ - Thomas Jefferson
Reply



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