Cyclic Quadrilateral
You are given the sizes of angles of a simple quadrilateral (in degrees) $A$, $B$, $C$ and $D$, in some order along its perimeter. Determine whether the quadrilateral is cyclic. Note: A quadrilateral is cyclic if and only if the sum of opposite angles is $180^{\circ}$. ### Input - The first line of the input contains a single integer $T$ denoting the number of test cases. The description of $T$
HINT LADDERno hints yet
L1 Observation
L2 Technique
L3 Approach
L4 Pseudo-code
🔒
L5 Full solution
L5 unlocks only if you insist twice
solution.cppC++17
CodeSearch Tutor
Hints, not spoilers — it won’t hand over the full solution unless you insist.
Sign in to chat with the tutor and save your progress.
Sign in to start