alexiacochrane alexiacochrane
  • 13-06-2017
  • Mathematics
contestada

Can anyone help?? I don't understand.

Can anyone help I dont understand class=

Respuesta :

jdoe0001 jdoe0001
  • 13-06-2017
if the height and base are equal, that simply means that b = h, or h = b

and we know the area is 18 m²

[tex]\bf \textit{area of a triangle}\\\\ A=\cfrac{1}{2}bh\qquad \begin{cases} b=h\\ A=18 \end{cases}\implies 18=\cfrac{1}{2}\cdot h\cdot h\implies 18=\cfrac{h^2}{2} \\\\\\ 36=h^2\implies \sqrt{36}=h[/tex]
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