Given:
Given that ABC is a right angled triangle.
The length of AB is 29 units.
Length of BC is 9 units.
The measure of ∠A is x.
We need to determine the value of x.
Value of x:
The value of x can be determined by using the trigonometric ratios.
Thus, we have;

Substituting the values, we get;

Simplifying, we get;

Taking
on both sides, we get;


Thus, the value of x is 18.08
Hence, the measure of ∠A is 18.08°