square abcd has sides of length 3cm.

the points m and n lie on ad and ab so that cm and cn split the square into three pieces of the same area.

what is the length of dm?

The focus of parabola is (-4, -5), and its directrix is y= -1. fill in the missing terms and signs in parabolas equation in standard form

Select all the statements that apply to this figure

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?