Pythagoras created a formula, which is used to calculate the length of a triangle's side based on its other sides.
<h3>What is a triangle?</h3>
A triangle is a geometrical shape or a figure with three sides. The angles of a triangle are set in such a way that the area of a triangle is 270 degrees. A triangle where one side is of 90 degrees is a right-angled triangle.
Pythagoras developed a theorem and a formula, which evaluated the way to calculate the length of a triangle's side based on its other sides.
Hence, option A holds true regarding triangles. The complete question is added for reference.
Learn more about a triangle here:
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