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Mathematics 19 Online
OpenStudy (anonymous):

the diagram is attached can you please make it detailed

OpenStudy (anonymous):

this is the question

OpenStudy (anonymous):

please answer

OpenStudy (anonymous):

BO + OD = BD

OpenStudy (callisto):

From the diagram, radius = OB

OpenStudy (anonymous):

you're given 2 of those quantities...

OpenStudy (callisto):

And OD =7, BD = 32 (given)

OpenStudy (anonymous):

so how do you get the chord

OpenStudy (callisto):

For (b), OC is also the radius of circle, ie OC = OB Use Pyth Thm \[OC^2 = OD^2 + CD^2\]Find CD

OpenStudy (callisto):

AC = 2CD (line joining from centre perpendicular to chord bisects chord)

OpenStudy (anonymous):

ok but how do you get OC

OpenStudy (callisto):

OC = OB (radii)

OpenStudy (callisto):

OB was found in (a)

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