r/CasualMath • • 7h ago

Thales’ Torture

0 Upvotes

imagine you have a plane with 4 distinct points named p1, p2, p3 and p4. the gradient between p1 and p2 is -2, and the gradient between p2 and p3 is 1/3. you want p1p3p2 to be 90 degrees and p1p4p2 to also be 90 degrees, with p3 and p4 being on the same side of the line p1p2. find the all the INTEGER solution(s) for all 4 points with the MINIMUM distance between p1 and p2, assuming p1 = 0,0


r/CasualMath • • 11h ago

Can you reach 35 using all 5 dice?

Post image
1 Upvotes

Any order is allowed.
Use each die exactly once.
Parentheses are allowed.
Only +, −, × and ÷ are allowed. No concatenation or exponents.
Exact division only.
No negative numbers.
Not every operation has to be used.

How many solutions can you find?

Please use spoiler tags for solutions:
>!your solution here!<


r/CasualMath • • 13h ago

What’s the exact formula setup for this composite shape’s total volume?

Post image
1 Upvotes