Question:
Solve ∆ABC, if a=29.3°, b=20.5cm, and a=12.8cm. round the side length to nearest tenth of centimeter angles degree, if necessary. include all solutions.
1
Expert's answer
2010-12-14T05:56:47-0500
According to the law of cosines: c2 = a2 + b2 - 2ab cos (∠ a) =12.82 + 20.52 - 2*12.8*20.5 cos(29.3°) = 126.428 c = 11.24 Then let's use the law of sines: a/c = sin (γ)/sin (α); b/c = sin (β)/sin (α); Thus γ = arcsin(a/c * sin (α)) = 33.8°
Numbers and figures are an essential part of our world, necessary for almost everything we do every day. As important…
APPROVED BY CLIENTS
"assignmentexpert.com" is professional group of people in Math subjects! They did assignments in very high level of mathematical modelling in the best quality. Thanks a lot
Comments
Leave a comment