Find the length of ca if cd is perpendicular to db and ab perpendicular to db
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If cd is perpendicular to db and
ab is perpendicular to db then
db is perpendicular to both cd and ab
db_|_ cd ×ab
db = x(cd×ab)
db =x(abcd)
ca=db/(bd)x
I think it is the answer
ab is perpendicular to db then
db is perpendicular to both cd and ab
db_|_ cd ×ab
db = x(cd×ab)
db =x(abcd)
ca=db/(bd)x
I think it is the answer
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