Find the area of a square with side 7cm. | cm^{2} |

Find the area of a rectangle with width 4cm and height 9cm. | cm^{2} |

The floor of hall is 30m long and 20m wide. Find the area of the floor. | m^{2} |

The area of a rectangle is 119cm^{2}. It is 7cm wide. Calculate the length of the rectangle. | cm |

The area of a square table is 6400cm^{2}. What is the length of one side of the table? | cm |