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 4007 m.
What is the diameter d of the lake?

The triangle shown has a hypotenuse with a length of 13 feet. the measure of angle a is 20 degrees. and the measure of angle b is 70 degrees. which of the following is closest to the length, in feet, of line segment ac? no need to use a calculator to find the trig numbers. each function is listed below. 4.4 5 12.2 35.7