6th Class Mathematics Mensuration Question Bank Mensuration (Perimeter & Area, Review of Earlier Concepts)

  • question_answer If the sides of an equilateral is 'a', what is the area?

    A) \[\frac{3}{4}{{a}^{2}}\]                            

    B)  \[\frac{\sqrt{3}}{4}{{a}^{2}}\]

    C) \[\frac{3\sqrt{3}}{4}{{a}^{2}}\]               

    D) \[\frac{3\sqrt{3}}{2}{{a}^{2}}\]

    Correct Answer: B

    Solution :

    Area                 Area \[=\frac{1}{2}.\frac{a}{2}.\frac{\sqrt{3}}{2}a=\frac{\sqrt{3}{{a}^{2}}}{4}\]

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