distance formula derivation
Check the final answer first, then review the worked steps.
Problem
distance formula derivation
Step-by-step solution
The distance formula $d = \sqrt{(x_2-x_1)^2 + (y_2-y_1)^2}$ is derived from the Pythagorean theorem, which applies to right triangles where the distance between two points is the hypotenuse.
Answer
B. right triangle