Find the value of x, rounded to the nearest tenth.

How do the definitions, properties, and postulates you've learned about line segments, parallel lines, and angles to define the shapes of polygons

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?

Which expression and diagram represent “renee biked four times as far this month as last month”?