area of yard

My yard is a triangle shape. The sides are 100m 250m and 275m Calculate the area of the yard.
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2 Answers

put 275 (longest side)  horizontal=base av triangel.

yu get : base=275, hite=90.73126,

vertex=(42.0455, 90.7310

alfa=63.1367 deg, beta=21.280 deg, gamma=93.583 deg

outside serkel radius=39.9218
by
o, i forgot: area=base*hite/2=275*90.73136/2=

=12,475.567
by

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