Geometry: An Interactive Journey to Mastery

(Greg DeLong) #1


Lesson 5: The Pythagorean Theorem



  1. D௘ͽ 'UDZDWULDQJOHZLWKVLGHVLQFKHVLQFKHVDQGLQFKHV
    E௘ͽ 'UDZDWULDQJOHZLWKVLGHVLQFKHVLQFKHVDQGLQFKHV
    F௘ͽ ,VLWSRVVLEOHWRGUDZDWULDQJOHZLWKRQHVLGHWLPHVORQJHUWKDQDQRWKHU"

  2. 7KHSHULPHWHURIDWULDQJOHLVWKHVXPRILWVWKUHHVLGHOHQJWKV,VWKHIROORZLQJVWDWHPHQWWUXHRUIDOVH"
    ,WLVSRVVLEOHWRGUDZDWULDQJOHZLWKRQHVLGHORQJHUWKDQKDOIWKHSHULPHWHURIWKHWULDQJOH

  3. 6XSSRVHWKDWWKUHHSRLQWVABDQGCVDWLVI\ABBC = AC([SODLQZK\WKHWKUHHSRLQWVPXVW
    EHFROOLQHDU


10.$UHFWDQJXODUER[KDVOHQJWKaLQFKHVZLGWKb
LQFKHVDQGKHLJKWc inches.
6KRZWKDWWKHOHQJWKRIWKHORQJHVWGLDJRQDO
LQWKHER[PQLVJLYHQE\PQ abc ^222.
ͼ௘6HHFigure 5.11௘ͽ

c

a
P b

Q


Figure 5.11
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