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ACB
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I am still interested in this problem: Alternative cartesian equation for epicycloid (quatrefoil). There ought to be a nice equation.

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13
How do you write $\sin(2x)$ in terms of $\tan x$?
Dec 11, 2021
11
What's the other case for finding the missing side of this triangle?
Jan 12, 2022
8
What is the sum of the angles a+b+c?
Aug 31, 2021
7
How do you derive that the inradius in a right triangle is $r=\frac{a+b-c}2$?
Oct 19, 2021
6
Polish Olympiad Problem
Mar 7, 2024
6
Remarkable property of equilateral triangles
Apr 6, 2023
6
Property of a kite inscribed in a square
Sep 11, 2021
5
Square in a quadrant of a circle (Doubt in a solution given)
Dec 25, 2021
5
Solve the angle $\angle{DCB}$ in triangle $\triangle{ABC}$ with $\angle{A}=84^{\circ}$
Nov 5, 2021
5
Find area of Pentagram : Regular Pentagon if $AP : PQ = m:1$
Sep 20, 2021

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Answer pretends to be accepted but actually not.
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List of earned bounties shows the state of question, not the answer.

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79
A Weapon or a Toy?
74
2 vs. 1.005^200
35
Make the number 606 50 percent bigger
32
9 digits in vertical arrangement
32
What fraction is shaded?