Project ID:
6000000007
Accepted:
Typ:
Layout:
Question:
Na obrázkoch sú znázornené ciferníky hodín. Priraďte k vyznačeným uhlom ich veľkosti:
Question 1 Image:
Answer 1:
$\frac \pi 2$
Question 2 Image:
Answer 2:
$\frac \pi 4$
Question 3 Image:
Answer 3:
$\frac \pi 3$
Question 4 Image:
Answer 4:
$\frac {5\pi }{12}$
Question 5 Image:
Answer 5:
$\frac \pi 6$
Question 6 Image:
Answer 6:
$\frac \pi {12}$
Tex:
% http://math4u.vsb.cz/ticket/31914
\newcommand\OBR[4][4mm]{
\obrMsr{-1.3,1.35,-1.3,1.35}[3cm,]
{
%\obrClip
\footnotesize
\obrKrizek {0,0}{below}{}
\draw (0,0) circle (1);
\foreach \i in {1,...,12} {\draw ({cos(90-(\i)*(360.0/12))},{sin(90-(\i)*(360.0/12))}) node {} coordinate (A\i);}
\draw (A#2)--(A#3)--(A#4);
\obrUhelB*[#1] {A#2}{A#3}[?]{A#4}
\foreach \i in {1,...,12} {\draw ($1.27*(A\i)$) node {\colorbox{white}{\!\!${\i}$\!\!}};}
\foreach \i in {1,...,12} {\draw ($1.025*(A\i)$) -- ($0.975*(A\i)$);}
}
}
\otazka{\OBR 2{10}8}{$\frac \pi 2$}
\otazka{\OBR 1{10}4}{$\frac \pi 4$}
\otazka{\OBR 951}{$\frac \pi 3$}
\otazka{\OBR 3{10}8}{$\frac {5\pi}{12}$}
\otazka{\OBR[6mm] 5{10}7}{$\frac\pi 6$}
\otazka{\OBR[10mm] 4{9}5}{$\frac \pi{12}$}
\NastavOD{6}
\def\preAnswers{\vspace*{-12pt}}