Example 5: Fill out chart of ratios using special triangles and the unit circle vodians 36° 450 60° 96° t80 270° TT TC 3T 0,2T 6. 4 3 sin x 2 2. 17 1- COS X 2. Undefined 0 undefined tan x

Length A in Figure 205 is 3 inches and length B is 2.5 feet. Determine the ratio of length A to length B in lowest form.

A single-threaded (or single-start) square-thread screw is shown in Figure 5-6. The lead of a screw is the distance that the screw advances in one turn (revolution). The lead is equal to the pitch in a single-threaded screw. Given the number of turns and the amount of screw advance, determine the leads.

In ABC, the midpoints of the sides are joined. a what does intuition suggest regarding the relationship between AED and FDE? We will prove this relationship later. b what does intuition suggest regarding AED and EBF.