Answer:
Step-by-step explanation:
since it is an isosceles triangle other two angles are 45 and 45 degree.
take 45 degree as reference angle
using sin rule
sin 45=opposite/hypotenuse
1/[tex]\sqrt{2[/tex]=x/[tex]\sqrt{12[/tex]
do cross multiplication
x[tex]\sqrt{2[/tex]=[tex]\sqrt{12[/tex]
x=[tex]\sqrt{12[/tex]/[tex]\sqrt{2[/tex]
x=[tex]\sqrt{3[/tex]
