The exact value of tanA is 2.3333 which is about 67⁰.
How the values of tanA is calculated.
What is trigonometric ratio?
Trigonometric ratios are relationships between the sides or angles of a right triangle. Common ratios include sine, cosine, and tangent, defining the relationship between specific sides and angles.
From that figure
TanA = opposite/adjacent
Opposite to angle A is 14umits
Adjacent to angle A = 6
tanA = 14/6
tanA = 2.333333
A = tan⁻¹(2.333)
A = 66.8⁰
approx 67⁰
The exact value of tanA is 2.3333 which is about 67⁰.