To calculate the area of a rectangular block, you need to multiply its length by its width. The formula for the area of a rectangle is A = l x w, where A represents the area, l is the length, and w is the width. Simply plug in the values for length and width into the formula and perform the multiplication to find the area of the rectangular block.
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The answer depends on what information about the block you do have. If you have its length, breadth and height, then the area is 2*(L*B + B*H + H*L) square units.
To calculate the cross sectional area of a rectangular tube, multiply the widths of two adjacent sides of the tube.
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perimeter of rectangle=2(l+b) l=length of the rectangle b=breadth of the rectangle
First of all you need to calculate the area of the rectangular field. You do this by multiplying the length by the width. 72m x 388m = 27,936m2 If a square (which has four equal sides of course) has the same area then we can calculate the length of a side by finding the square root of the above. 27,936m1/2 = 167.14m (to 2 decimal places).
It depends on the cross section which may be circular, elliptical, square, rectangular or of a more complex shape.