Math will give brainliest m(−6, 7) is the midpoint of df¯¯¯¯¯ . the coordinates of point d are (−14, 13) . what are the coordinates of point f? enter your answer in the boxes.

You are standing next to a really big circular lake. you want to measure the diameter of the lake, but you don't want to have to swim across with a measuring tape! you decide to walk around the perimeter of the lake and measure its circumference, and find that it's 400\pi\text{ m}400? m. what is the diameter dd of the lake?