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I need to draw this image using TikZ.

A PSTricks solution just for fun.

documentclass[pstricks,12pt]{standalone}

usepackage{pst-eucl}

begin{document}

begin{pspicture}[arrowinset=0](-5,-1)(1,5.5)

    pstGeonode[PointSymbol=none,PosAngle=-45](0,0){S}

    pnodes(5;150){A}(5;100){B}

    pswedge(S){5}{(B)}{(A)}

    psframe(A|S)(S|B)

    rput{0}(5.4;130){$c(h)$}

    pcline(A)(S)ncput*{$h$}

    pcline[offset=-.5]{|<->|}(A|S)(S)ncput*{$p$}

    pcline[offset=.5]{|<->|}(S|B)(S)ncput*{$q$}

end{pspicture}

end{document}

Using a local bounding box saves us from a lot of hassle here.

documentclass[border=3.14mm,tikz]{standalone}

begin{document}

  begin{tikzpicture}

   node[fill,inner sep=1.5pt,circle] (O) at (0,0){};

   begin{scope}[local bounding box=box]

    draw (O.center) -- (100:4) arc(100:140:4) node[pos=0.7,above,sloped,inner

    xsep=0pt] {$c(h)$}

    -- node[midway,below] {$h$} cycle;

   end{scope}  

   draw (box.south west) rectangle (box.north east);

   draw[|-|] (1,0|-box.south) -- (1,0|-box.north)node[midway,fill=white]{$p$};

   draw[|-|] (0,-1 -|box.west) -- (0,-1 -|box.east)node[midway,fill=white]{$q$};

  end{tikzpicture}

end{document}

Here is a way to build this figure that uses several key concepts from TikZ:

• the scope
  


• clip


• the use of the intersections library


• the use of node to place text.


• 
  sloped to write text tangent to a path

Their use is explained in the written comments in the code.

documentclass[border=5mm]{standalone}

usepackage{tikz}

usetikzlibrary{intersections}



begin{document}



begin{tikzpicture}

% This scope allows you to draw the part of the circle inside the rectangle. The outer part is cut off.

begin{scope}% use of intersections library to define the intersections between circle and rectangle

draw[name path global=cadre,clip] (0,0) rectangle (3.5,4.5);

draw[name path global=cercle] (3.5,0)circle(4.6cm);

end{scope}



% draw both sides of the angular sector

draw[name intersections={of=cercle and cadre}](intersection-2)--(3.5,0)--(intersection-1)node[above right,midway]{h};



% sloped allow to write text tangent to the path

path[above] (intersection-1)to[bend left=15]node[sloped]{$c(h)$}(intersection-2);



% dimension of rectangle wrtien in 2 differents way

draw [<->](4.2,0)--node[right]{q}(4.2,4.5);

draw [<->](0,-.6)--(3.5,-.6)node[below,midway]{p};

end{tikzpicture}



end{document}

Here you go :)

documentclass{standalone}

usepackage{tikz}



begin{document}

    begin{tikzpicture}[x=0.75pt,y=0.75pt,yscale=-1,xscale=1,line width=0.75pt]

    draw   (46.5,25) -- (145.5,25) -- (145.5,156.33) -- (46.5,156.33) -- cycle ;

    draw    (46.5,176.33) -- (145.5,176.33) ;

    draw [shift={(145.5,176.33)}, rotate = 180] [color={rgb, 255:red, 0; green, 0; blue, 0 }  ][line width=0.75]    (0,5.59) -- (0,-5.59)(10.93,-4.9) .. controls (6.95,-2.3) and (3.31,-0.67) .. (0,0) .. controls (3.31,0.67) and (6.95,2.3) .. (10.93,4.9)   ;

    draw [shift={(46.5,176.33)}, rotate = 0] [color={rgb, 255:red, 0; green, 0; blue, 0 }  ][line width=0.75]    (0,5.59) -- (0,-5.59)(10.93,-3.29) .. controls (6.95,-1.4) and (3.31,-0.3) .. (0,0) .. controls (3.31,0.3) and (6.95,1.4) .. (10.93,3.29)   ;

    draw    (165.5,156.33) -- (165.5,25) ;

    draw [shift={(165.5,25)}, rotate = 450] [color={rgb, 255:red, 0; green, 0; blue, 0 }  ][line width=0.75]    (0,5.59) -- (0,-5.59)(10.93,-4.9) .. controls (6.95,-2.3) and (3.31,-0.67) .. (0,0) .. controls (3.31,0.67) and (6.95,2.3) .. (10.93,4.9)   ;

    draw [shift={(165.5,156.33)}, rotate = 270] [color={rgb, 255:red, 0; green, 0; blue, 0 }  ][line width=0.75]    (0,5.59) -- (0,-5.59)(10.93,-3.29) .. controls (6.95,-1.4) and (3.31,-0.3) .. (0,0) .. controls (3.31,0.3) and (6.95,1.4) .. (10.93,3.29)   ;

    draw    (46.88,52.66) -- (145.5,156.33) ;

    draw    (117.77,25) -- (145.5,156.33) ;

    draw  [draw opacity=0] (46.88,52.66) .. controls (65.27,35.5) and (89.95,25) .. (117.08,25) .. controls (117.31,25) and (117.54,25) .. (117.77,25) -- (117.08,127.92) -- cycle ; draw   (46.88,52.66) .. controls (65.27,35.5) and (89.95,25) .. (117.08,25) .. controls (117.31,25) and (117.54,25) .. (117.77,25) ;



    % Text Nodes

    draw (99,163) node  [align=left] {$displaystyle p$};

    draw (174,91) node  [align=left] {$displaystyle q$};

    draw (101,96) node  [align=left] {$displaystyle h$};

    draw (153,160) node  [align=left] {$displaystyle s$};

    draw (82,40) node [scale=0.8] [align=left] {$displaystyle c( h)$};

    end{tikzpicture}

end{document}