PrecalculusHard SharePrecalculus · Hard problemFor a triangle with b=12b=12b=12 and A=40∘A=40^\circA=40∘, find the range of values of side aaa for which exactly two triangles exist.A7.7<a<137.7<a<137.7<a<13B7.7<a<247.7<a<247.7<a<24C−7.7<a<12-7.7<a<12−7.7<a<12D7.7<a<127.7<a<127.7<a<12Check Show answer Walk through it step by step Practice more like this