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polet [3.4K]
3 years ago
14

What is the measure of angle A?

Mathematics
1 answer:
dsp733 years ago
5 0
To find the measure of angle A set up a trig function, sin, cos otr tan.
Since all sides are know any ratio will work.
Sin A = opposite/hypotenuse
Sin A = 80/82
Sin-1 (80/82) = angle A
A= 77.32 degrees
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