Obliczenia
\frac{r}{x}=tg23^0
\frac{5,23}{x}=0,4245
a=5,23+12,32=17,55(cm)
x=5,23:0,4245\approx12,32
\frac{r}{y}=tg67^0
\frac{5,23}{y}=2,356
y=5,23:2,356=2,22
b=5,23+2,22=7,45 (cm)
P=\frac{(a+b) * h}{2}=\frac{(17,55+7,45) * 10,46}{2}=130,75=\approx131(cm^2)