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Isosceles Triangle in a Semi-circle3
Contributed by: Mac Dermott
a
65

⊾aco = 90

⊾aco = 60

⊾aco = 80

⊾aco = 65

c
o
b
ab is the diameter of  a circle with centre o.  
Find |⊾aco|
a
65

⊾acb = 65

⊾acb = 90

⊾acb = 80

⊾acb = 60

c
o
b
ab is the diameter of  a circle with centre o.  
Find |⊾acb|
a
65

⊾bco = 90

⊾bco = 65

⊾bco = 10

⊾bco = 25

c
o
b
ab is the diameter of  a circle with centre o.  
Find |⊾bco|
a
65

⊾aoc = 50

⊾aoc = 60

⊾aoc = 80

⊾aoc = 65

c
o
b
ab is the diameter of  a circle with centre o.  
Find |⊾aoc|
a
65

⊾aco = 90

⊾aco = 65

⊾aco = 80

⊾aco = 55

c
o
b
ab is the diameter of  a circle with centre o.  
Find |⊾aco|
a
65

⊾acb = 80

⊾acb = 60

⊾acb = 90

⊾acb = 65

c
o
b
ab is the diameter of  a circle with centre o.  
Find |⊾acb|
a
65

⊾cbo = 90

⊾cbo = 60

⊾cbo = 25

⊾cbo = 65

c
o
b
ab is the diameter of  a circle with centre o.  
Find |⊾cbo|
a
65

⊾boc = 90

⊾boc = 130

⊾boc = 80

⊾boc = 65

c
o
b
ab is the diameter of  a circle with centre o.  
Find |⊾boc|
a
65

⊾cob = 90

⊾cob = 60

⊾cob = 80

⊾cob = 130

c
o
b
ab is the diameter of  a circle with centre o.  
Find |⊾cob|
a
65

⊾aco = 90

⊾aco = 60

⊾aco = 80

⊾aco = 65

c
o
b
ab is the diameter of  a circle with centre o.  
Find |⊾aco|
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