Find the area of a triangle whose sides are 18mm,24mm and 30mm​

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Find the area of a triangle whose sides are 18mm,24mm and 30mm​

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Alexandra 1 month 2021-08-18T08:35:09+00:00 1 Answer 0 views 0

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    2021-08-18T08:36:35+00:00

    Sides of Triangle are ,

       a = 18mm

       b = 24mm

       c = 30 mm

    S = \frac{a+b+c}{2}

      = \frac{18+24+30}{2}

      =\frac{72}{2}

      =36

    Area of triangle = \sqrt{S(S-a)(S-b)(S-c)}

                            = \sqrt{36(36-18)(36-24)(36-30)}

                            = \sqrt{36\times 18 \times 12 \times 6}

                            = \sqrt{18\times2\times18\times2\times6\times6}

                            = \sqrt{18\times18\times2\times2\times6\times6}

                            = 18\times2\times6

                            = 216\:mm^{2}

    HOPE IT HELPS U ……..

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