5.}sEinFD} 5¬}sDinEF}}sin8D} 5¬}sin1822°}12sinD5¬8sin82°sinD5¬}8si1n282°}D5¬sin211}1n282°}2D<¬41°m/D1m/E1m/F5¬18041 1m/E182<¬180m/E1123<¬180m/E<¬57}sDinFE} 5¬}sEinFD}}siDn5F7°} 5¬}sin841°}8sin57°5¬DFsin41°}8ssinin4517°°} 5¬DF10.2 <¬DFPage 384Geometry Software Investigation: The Ambiguous Case of the Law of Sines1.BD,AB, and m/A2.Sample answer: There are two different triangles.3.Sample answer: The results are the same. In eachcase, two triangles are possible.4.Sample answer: Circle Bintersects AC#$at only onepoint. See students’ work.5.Yes; sample answer: There is no solution if circleBdoes not intersect AC.The Law of CosinesPages 387–388Check for Understanding1.Sample answer: Use the Law of Cosines when youhave all three sides given (SSS) or two sides andthe included angle (SAS).2.If you have all three sides (SSS) or two sides andthe included angle (SAS) given, then use the Lawof Cosines. If two angles and one side (ASA or
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This note was uploaded on 12/19/2011 for the course MAC 1140 taught by Professor Dr.zhan during the Fall '10 term at UNF.