Use the law of sines. find b to the nearest tenth. triangle cba line cb= 76, ∠a=44° , ∠b=45° , line b is in between ac
a. 47.4 b. 77.4 c. 74.7 d. 37.3

b = 77.4 ⇒ answer (b)

Step-by-step explanation:

∵ m∠A = 44° , m∠B = 45° , BC = 76

By using sin Rule:

∵ AC/sinB = BC/sinA

∴ AC/sin45 = 76/sin44

∴ AC = (76 × sin45) ÷ sin44 = 77.4

∵ AC = b

∴ b = 77.4 answer (b)

-1/2 +2

step-by-step explanation:

step-by-step explanation:

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