if the point A(2,3)B(5,k)andC(6,7)are collinear, then

if the point A(2,3)B(5,k)andC(6,7)are collinear, then X. It sec" • cosectA—ZO). 4A a measure ot acute m. (A) 45 (B) 70 27. ratio the *'9th a tower and shadcm me o' by a perpn standing top ot that tos see the err: So (B) 60 Z. As shown in f Oure i' > then 90

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