Exercise 15 Page 392

To find FH, we should use the Segment Addition Postulate. This postulate tells us that, if we have a point between two points, we can add the lengths of the two smaller segments to find the longer segment length. In our case, G is between F and H, so we can get the length FH by adding FG and GH. FH = FG + GH From the diagram, we know that the length FG is 8 and the length GH is 14. Now, we can use this to calculate FH.

FH=FG+GH

SubstituteII

FG= 8, GH= 14

FH= 8+ 14

AddTerms

Add terms

FH=22

The length FH is 22.