Question

1. what type of polygon is needed to use the pythagorean theorem?

acute triangle
rectangle
isosceles triangle
right triangle

Explanation:

The Pythagorean theorem, \(a^{2}+b^{2}=c^{2}\), where \(a\) and \(b\) are the legs of a right - angled triangle and \(c\) is the hypotenuse, is specifically applicable to right triangles. An acute triangle (\(a^{2}+b^{2}>c^{2}\) for all sides), a rectangle (a quadrilateral, not directly using the Pythagorean theorem in its basic form without dividing into triangles), and an isosceles triangle (which may or may not be right - angled) do not have the Pythagorean theorem as a fundamental property in the same way as a right triangle.

Answer:

right triangle