Homework Help: math

Posted by deborah on Thursday, March 25, 2010 at 11:05am.

could someone please help.
given each set of data for ∆ABC:
a) solve for b given ∠B=88 degrees,a=31.5m,c=25.6cm
b) solve for a given ∠B=66 degrees,∠C=28 degrees,c=11.6cm
i) state whether the sine law or cosine law is required to solve the unknown value.
ii) use the law you selected in i) to solve for the unknown value, correct to one decimal place.

math - Reiny, Thursday, March 25, 2010 at 11:21am
Use cosines law for SSS and SAS
use sine law for others

a) cosine law
b) sine law
math - deborah, Thursday, March 25, 2010 at 12:47pm
thank you

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