bmc8807 bmc8807

03-06-2014
Mathematics

Answered

find the area of a triangle given that
c=40m
b=20m
a=48°

Answer :

kate200468 kate200468

04-06-2014

[tex]Area= \frac{1}{2}\cdot c\cdot b\cdot sin \alpha \\\\------------------\\\\A= \frac{1}{2}\cdot 40\cdot20\cdot sin48^0\approx400\cdot0.7431=297.24\ [m^2]\\\\Ans.\ Area\ is\ about\ 297.24\ [m^2][/tex]

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