Question

Find angle A to the nearest degree.



A ≈

Answer 1

then you would use the (cosine inverse) using calculator
\[\cos^{-1} (0.682828644501)\]
the result will be the angle

Answer 2

I don't know how to do that with my calculator.

Answer 3

would it 47 degrees? because it saids to the nearest degree?

Answer 4

@NooriK.

Answer 5

@ranga is this right?

Answer 6

no
\[\cos^{-1} (291/391) = 41.90 \approx 42\]

Answer 7

but we got 0.6828. im using the chart

Answer 8

but 291/391 = 0.7442455
not 0.6828286

Answer 9

no its 267/391

Answer 10

from the pic.

Answer 11

Yes, cos^(-1) { 267/391) approximately equals 47 degrees.