Incorrect. The arc determined by $\displaystyle\angle{G}{O}{H}\usepackage{cmbright}\Huge\$ has length $\displaystyle{s}={36}\usepackage{cmbright}\Huge\$ inches.The radius $\displaystyle{r}={1.5}\usepackage{cmbright}\Huge\$ feet. You need to have the two measurements in the same units, so you must convert one of them. Then substitute these lengths into the formula: $\displaystyle\theta=\frac{{s}}{{r}}\usepackage{cmbright}\Huge\$