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24-03-2020
Mathematics

contestada

find angle A using sin-1

find angle A using sin1 class=

Respuesta :

28-03-2020

Answer:

75°

Step-by-step explanation:

firstly, use the pythagoras theorem

Square root(8²-2²) = 7.75

Then, use sine

sine A= 7.75/8

Sine A=0.9688

A= (sine power of -1) x (0.9688)

A=75.63

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