jason153 jason153
  • 11-05-2018
  • Mathematics
contestada

find the area of an isosceles triangle with base 20 and base angles 40 degrees

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jdoe0001 jdoe0001
  • 11-05-2018
check the picture below.

make sure your calculator is in Degree mode.

[tex]\bf \textit{area of a triangle}\\\\ A=\cfrac{1}{2}bh~~ \begin{cases} b=20\\ h=y \end{cases}\implies A=\cfrac{1}{2}(20)(y)[/tex]
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