In triangles ABC,if A=38°, B=27°, b=17m, find a and c?
D4V1D
12 Apr, 2021
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Robert01
5 years ago
From sine rule,
a/sin.A = b/sin B = c/sin C
a/sin 38° = 17/sin 27°
a= (17)(sin 38° ÷ sin 27°)= 23.05m
A + B + C= 180°
C= 180° – (38° + 27°)= 180° – 65°= 115°
17/sin 27° = c/sin 115°
c= (17)(sin 115° ÷ sin 27°)= 33.94m
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