1.

Find the area of triangle by heron's formula whose sides are 18,34and30

Answer»

Answer:

Area = 269.46

Step-by-step explanation:

In Herons formula we have AREA =       \sqrt{S(S-A)(S-B)(S-<klux>C</klux>)}

Where    A , B , C are Side of traingle

and     S = ( A + B + C ) / 2

                     First we will FIND the value of S

                        so     S = ( 18 + 34 + 30 ) / 24

                                     = 41

now PUT the values of S ,A ,B and C we have

                   Area of Traingle = \sqrt{S(S-A)(S-B)(S-C)}

                                                 = \sqrt{41(41-18)(41-34)(41-30)}

      calculating we will get    area  = \sqrt{72611}

                                                          = 269.46

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