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Mathematics 8 Online
OpenStudy (a1234):

Can someone explain how the answers are 97, 32, and 51?

OpenStudy (a1234):

OpenStudy (anonymous):

AB is a secant and BC is a tangent, so angle B will be half the difference between arcs AD and DE. <B = ½(arc AD - arc DE) 4x = ½(18x-15 - (8x + 1)) 4x = ½(10x - 16) 4x = 5x - 8 x = 8 <B = 4x = 32°

OpenStudy (anonymous):

|dw:1433300303827:dw| Make the substitutions and find arcs AD & DE

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