Math, asked by Ananya10801, 1 year ago

guys plz solve the 1 question.....by heron's formula

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Anonymous: hey f-you
Ananya10801: what r u talking about

Answers

Answered by siddhartharao77
7
Let the sides of a triangular field be a = 50m, b = 65m, and c = 65m.

Semi-perimeter of a triangular field s =  \frac{a + b + c}{2}

                                                               \frac{50 + 65 + 65}{2}
 
                                                              =  \frac{180}{2}

                                                              = 90.



Now,

Area of triangular field  = \sqrt{s(s-a)(s-b)(s-c)}  

                                              = \sqrt{90(90 - 50)(90 - 65)(90-65)}

                                              = \sqrt{90(40)(25)(25)}

                                               \sqrt{2250000}

                                              1500m^2.


Given Cost of laying per m^2 = 7.

Then, Cost of laying grass per 1500m^2 = 1500 * 7

                                                                    = 10500.


Hope this helps!

siddhartharao77: :-)
Ananya10801: oh god
Ananya10801: thank uuu
Answered by Anonymous
2
Hi,

Please see the attached file!


Thanks
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