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3 years ago

Please answer please

Mathematics

1 answer:

Vladimir [108]3 years ago

6 0

Answer:

53.13°

Step-by-step explanation:

Using Sine rule

b / Sin B = a / Sin A

5/ Sin90 = 4 /Sin A

5/1 = 4 /SinA

Sin A = 4/5

A = arc sin(0.8)

A = 53.13010

A = 53.13 °

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