Question

how to measure regular and irregular surfaces​

Answer 1

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The area of an irregular object can be obtained by drawing an outline of the shape of the object on a graph paper of 1 square centimeter marked square. The number of complete squares is counted. Next squares more than half are also counted as a complete square. Squares less than half are left and not counted.

Regularly Shaped Objects. To find the volume of a rectangular object, measure the length, width and height. Multiply the length times the width and multiply the result by the height. The result is the volume.