How many square metres on a 6x3 plasterboard?

Imagine all 6 billion people could stand side by side and that each person took 4sq ft to stand in. How much area would be needed? What is the measure on one exterior angle of a regular 26-gon? Are postulates accepted as true without proof? what- the perimeter of a rectangle is 100 centimeters. The length is twice the width.Which equation could you use to find the width of the rectangle in centimeters? 12 feet by 17 feet is how many square yards? Does a cylinder roll and slide? Could a tessellation be created using circles? How many more sides does a heptagon have than a hexagon? How many millimeter are in a vase? A polygon has twelve vertices how many sides the polygon have? What is a curve? What is the Diameter of circle with a area? A type of triangle with no congruent sides or angles? How many square feet are there in 1.06 acres? Surface area of cylinder formula? What is the measure of each angle in a regular heptagon? What is true about the diagonals in an isosceles trapezoid? How long is a 4 inch line? What is the equivalent of 1 metric ton to US gallon? How do you calculate the interior angles of a nonagon?