SSC MCQ Question Ans. Mensuration. The length of a line, the area of a place, the volume of a solid, etc. are determined for practical purposes. In the case of measuring any such quantity, another quantity of the same kind having some definite magnitude is taken as a unit. The ratio of the quantity measured and the unit defined in the above process is the amount of the quantity.
SSC MCQ Question Ans. Mensuration
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If a line segment divides the two sides or their produced sections of a triangle proportionally, it is parallel to the third side. The congruence and similarity of triangles have been discussed earlier in class VII. In general, congruence is a special case of similarity. If two figures are congruent, they are similar; but two similar triangles are not always congruent.