Using the Pythagorean Theorem, the length of the base is: 15 units.
What is the Pythagorean Theorem?
The Pythagorean theorem is used to find any of the length of the legs or hypotenuse of a right triangle if we know any two measures of its side. The theorem is given as: the square of the hypotenuse = sum of the squares of the legs of the right triangle.
It can be expressed as c² = a² + b², where c is the longest side of the right triangle.
Note: The hypotenuse is the longest side of the triangle.
Thus, given the triangle in the image below, where:
c = 25
a = 20
b = length of the base
The expression that would be appropriate for this situation would be written based on the Pythagorean Theorem, which is:
b = √(c² - a²)
Substitute
b = √(25² - 20²)
b = 15 units
The length of the base is: 15 units.
Learn more about the Pythagorean Theorem on:
https://brainly.com/question/343682
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