Asked by Anonymous

A 40 foot long escalator rises from the first floor to the second of a shopping mall. The escalator makes a 30 degree angle with the horizontal. How high above the first floor is the second floor?

Answers

Answered by Reiny
sin 30° = height/40
height = 40sin30
= ...
Answered by Anonymous
Is it 20 feet
Answered by Anonymous
We never learned sin We use a different formula. I am using 30 60 90 triangle formula
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