The degree measure of the abc angle is 25% of the flattened angle. how many percent is the degree measure of the angle.

You need to solve the problem with interest. To do this, we will use the proportioning. Let’s denote by x the degree measure of this angle. The entire unfolded angle is designated as 100%.
Let’s make the following proportion:
180 = 100%;
x = 25%;
Let’s solve this proportion using the method of diagonals, multiplying each diagonal with each other.
100 * x = 180 * 25;
Let’s sort this equation by performing the possible multiplication actions:
100 * x = 4500;
Find x:
x = 45 °.
This means that the degree measure of the angle ABC is 45 °.
Answer: 45 °.