Question

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Find b, given that a = 18.2, Angle B = 62°, and Angle C = 48°. Round answers to the nearest whole number.

Answer 1

m<A + m<B + <C = 180
can u find the angle A, first ?

Answer 2

58

Answer 3

m<A +62° + 48° = 180
so, <A = ... ?

Answer 4

58...

Answer 5

still incorrect
m<A +62° + 48° = 180°
m<A + 110° = 180°
m<A = 180° - 110°
m<A = 70°

Answer 6

now, to get b use the sine rule :
b sinA = a sinB
b sin 70° = 18.2 sin 62°
solve for b