the sum of internal angles of a 4-sides figure is 360° ever then
[tex]P+Q+S+R=360[/tex]we know P and R is a right angles then is 90°, then we can replace
[tex]22+Q+S+90=360[/tex]simplify
[tex]Q+S+112=360[/tex]and the angles Q and S are the same because the kite is symmetrical then Q=S
and we can replace Q=S
[tex]S+S+112=360[/tex]simplify
[tex]2S+112=360[/tex]and solve for S
[tex]\begin{gathered} 2S=360-112 \\ 2S=248 \\ S=\frac{248}{2} \\ \\ S=124 \end{gathered}[/tex]then right option is D 124
