Question

Find the measure of angle A associated with the following ratios and round to the nearest degree. CosA=0.2785 m∠A=

Answer 1

74°.

Explanation:

From the question given above,

Cos A = 0.2785

To get the value of angle A, we simply find the inverse of Cos as shown below:

Cos A = 0.2785

Take the inverse of Cos.

A = Cos¯¹ 0.2785

A = 73.8° ≈ 74°

Therefore, the value of angle A is approximately 74°