isabellagotay2008 isabellagotay2008

14-04-2021
Mathematics

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here's the question

heres the question class=

Respuesta :

pshroff pshroff

15-04-2021

Answer:

60

Step-by-step explanation:

perimeter (p) = 8 + 17 + 15 = 40

semi-perimeter (s) = p/2 = 20

Area = square root of s(s-a)(s-b)(s-c) where a,b,c are the sides of the triange by Herons formula.

Therefore, area = 20(20-8)(20-15)(20-17) = square root of 3600 = 60

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