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159 sats \ 21 replies \ @Undisciplined 28 Sep \ on: [Daily puzzle] Find the area covered by the blue shade science
72 cm2
The arcs are circles of the same radius offset by 6cm. That makes the white area in one square congruent to a white area in the adjacent square. Two full worth of blue are shaded.
18x12 - 12x12 is 12(18-12) is 12x6 or 72
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True, but what led you down that path.
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Your hint about the congruent circle ⭕️
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Interesting
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Actually this is a routine question asked of 12-year-olds in our Primary School Leaving Examination. They are trained to employ such heuristic thinking
Cc: @Satosora
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American 12th graders would be almost universally stumped by this question.
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Sad, but true
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Well they aren’t trained to do it, that’s why
I should post some tough PSLE questions here. Every other year, a question gets featured in our national media because kids come out of the exam room crying, parents cry foul, and education personnel tell everyone to chillax. It’s all very dramatic haha
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Curious about that PSLE questions.
Happened here too for 수능, university entrance exam. Some questions end up being too difficult. And because one's whole future sounds depends on a single exam, this can lead to big emotions...
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While future in one exam
Sounds extreme
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The major Korean companies only hire from graduates from the top 4 colleges, if I’m not mistaken. Quite an immobile society in that sense
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That's a bit of a caricature, but it used to be pretty much like that. Slowly changing though. One of my recent students, not from any of those 4 unis, got hired without a problem by Samsung.
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I’m happy n relieved for your student!
What do you do if you don’t attend a top 4 school?
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Whole not while , dam autocorrect
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Sure, I will post one!
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No, they are trained to do it. Our government education is just a complete disaster.
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