[tex]\frac{441}{4}[/tex]
change the mixed numbers to improper fractions and multiply the numerators / denominators
10 [tex]\frac{1}{2}[/tex] = [tex]\frac{21}{2}[/tex]
[tex]\frac{21}{2}[/tex] × [tex]\frac{21}{2}[/tex] = [tex]\frac{441}{4}[/tex] = 1110 [tex]\frac{1}{4}[/tex]
