Give the measure of the acute angle with each given value to the nearest tenth of a degree.

cos A = 0.1 (84.3 degrees)

sec D = 1.8 (65.3 degrees)

That is all it gives :(

How would I go about solving this?

cos A = 0.1 (84.3 degrees)

sec D = 1.8 (65.3 degrees)

That is all it gives :(

How would I go about solving this?