d) Use parts (6) and (c) to find area of the lune ABDE (red area) in terms of r el Pust all of these together to explain why this line is quadrable

Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
Chapter8: Areas Of Polygons And Circles
Section8.5: More Area Relationships In The Circle
Problem 9E
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#2
r
B
22
อ
r
Figl
Å
с
a) Let ABC be a semicircle centered
at o with radius r. Find area of
SAOB in terms of r
b) Find area AEBF (blue area) in terms.
of r.
Here
area
you may use the fact that
૨
a circle is Tr
of
c) Find area of semicircle ADBF in terms
fr.
Use parts (6) and (c) to find area of the
line ABDE (red area) in terms of r
e) Put all of these together to explain
why this line is quadrable
Transcribed Image Text:#2 r B 22 อ r Figl Å с a) Let ABC be a semicircle centered at o with radius r. Find area of SAOB in terms of r b) Find area AEBF (blue area) in terms. of r. Here area you may use the fact that ૨ a circle is Tr of c) Find area of semicircle ADBF in terms fr. Use parts (6) and (c) to find area of the line ABDE (red area) in terms of r e) Put all of these together to explain why this line is quadrable
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