Asked by Alex
in triangle DEF,<D=50 degree, DE=14 meters, and DF=10 meters. find the area of triangle DEFto the nearest tenth of a square meters
Answers
Answered by
Reiny
If you have a triangle with sides a and b and Ø is the angle between them, then the area is
(1/2)ab sinØ
you have that condition, so
Area = (1/2)(14)(10)sin50° = appr 53.623
or to the nearest tenth ----> 53.6 m^2
(1/2)ab sinØ
you have that condition, so
Area = (1/2)(14)(10)sin50° = appr 53.623
or to the nearest tenth ----> 53.6 m^2
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