2
$\begingroup$

What's the answer to this puzzle?


enter image description here

$\endgroup$
3
  • 1
    $\begingroup$ May I ask is the third symbol in the bottom line a triangle ($\triangle$) or capital delta ($\Delta$)? Also, is the fifth symbol a degree symbol or just a small 0? Thanks! $\endgroup$ Oct 4, 2022 at 8:10
  • 1
    $\begingroup$ @CheeseCake Yes, it's a triangle $\endgroup$ Oct 4, 2022 at 8:13
  • 1
    $\begingroup$ It's a degree symbol $\endgroup$ Oct 4, 2022 at 8:18

2 Answers 2

4
$\begingroup$

Prem's answer (+1) pretty much nailed it except that

the S.t. and picture with an X through it means such that it is not on the line connecting the red dots.

Then a

triangle with an angle more than 90 degrees is accomplished by any dot that is to the left of 1/4 or to the right of 3/4 or any dot within a circle of radius 1/4 centered on the center enter image description here

So the

probability is 0.5 + 0.196 = 0.696

$\endgroup$
5
  • $\begingroup$ Well done! This is the right interpretation and the answer is correct. $\endgroup$ Oct 6, 2022 at 7:37
  • $\begingroup$ Nice [ +1 ] I agree that the "X" is "negation" , not "Diagonal Intersection" ! Observation : there is no Irrationality involved & the title was not a clue ! $\endgroup$
    – Prem
    Oct 6, 2022 at 8:22
  • $\begingroup$ Why does the arrow for the yellow dot have some sort of flip indicator above it? Do we know what that means? $\endgroup$
    – Amoz
    Oct 6, 2022 at 12:46
  • 1
    $\begingroup$ @Prem the rot13(nern bs gur pvepyr / cv) is irrational $\endgroup$
    – caPNCApn
    Oct 6, 2022 at 17:47
  • $\begingroup$ @Amoz good question, i dunno. that is actually where I got stuck the first time i looked at this puzzle $\endgroup$
    – caPNCApn
    Oct 6, 2022 at 17:47
4
$\begingroup$

What I got till now :

Take 2 red Dots or Points. Put those into the Square.

Each Dot must be 1/4 Distance from the vertical sides.

Each Dot must be 1/2 Distance from the top side.

Take a yellow Dot & put it into the Square.

Such that , It is on the line joining the 2 red Dots where the Diagonal lines are shown to intersect this line at the Centre.

What is the Probability that the Angle in the triangle is more than 90 ?

Might be Irrational , involving PI or trigonometry.

$\endgroup$
2
  • $\begingroup$ Good job (+1), you had the right idea except for the lower part of the puzzle. A correct answer has been given by Cap $\endgroup$ Oct 6, 2022 at 7:34
  • 1
    $\begingroup$ Oh ok , (1) I thought that It was the Diagonal Intersection , not a negation (2) I thought that there must be Irrational Probability. Either ways, Nice Puzzle ! $\endgroup$
    – Prem
    Oct 6, 2022 at 8:17

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.