How can you use tables to helps solve rate and work problems?

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?

The distance between two points is 6.5cm and scale of map is 1: 1000 what's the distance between the two points

What is the measure of angle 1? a.28 b.152 c.168 d.64