1.

\left. \begin{array} { l } { 150 \frac { 3 } { 4 } cm , \text { what is its area? } } \\ { 150 \frac { 9 } { 16 } cm ^ { 2 } } \\ { 84 \frac { 21 } { 32 } cm ^ { 2 } } \end{array} \right.

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