זווית היקפית

α ו-β נשענות על אותה הקשת.


\[\begin{aligned} \measuredangleβ=36 \end{aligned}\]
\[\begin{aligned} \Downarrow \end{aligned}\]
\[\begin{aligned} \measuredangleα=\INPUTBOX{1}{ltr}{72} \end{aligned}\]

נתון: o מרכז המעגל.


\[\begin{aligned} \measuredangleβ=70 \end{aligned}\]
\[\begin{aligned} \Downarrow \end{aligned}\]
\[\begin{aligned} \measuredangleα=\INPUTBOX{1}{ltr}{220} \end{aligned}\]

נתון: o מרכז המעגל.


\[\begin{aligned} \measuredangleβ=35 \end{aligned}\]
\[\begin{aligned} \Downarrow \end{aligned}\]
\[\begin{aligned} \measuredangleα=\INPUTBOX{1}{ltr}{55} \end{aligned}\]

α ו-β נשענות על אותה הקשת.


\[\begin{aligned} \measuredangleβ=20 \end{aligned}\]
\[\begin{aligned} \Downarrow \end{aligned}\]
\[\begin{aligned} \measuredangleα=\INPUTBOX{1}{ltr}{10} \end{aligned}\]