the angle of elevation to the top of a building is 75 degrees from the ground at a distance of 425 feet from the base of the building. Using this information, which expression could be used to find the height of the building?
A.H=425sin75degrees
B. H=425tan75degrees
C. 425cos75degrees
D. 425csc75degrees
E. none of the above

Question

the angle of elevation to the top of a building is 75 degrees from the ground at a distance of 425 feet from the base of the building. Using this information, which expression could be used to find the height of the building?
A.H=425sin75degrees
B. 	H=425tan75degrees
C. 	425cos75degrees
D. 	425csc75degrees
E. 	none of the above

callisto · Answer

First, let's draw a diagram.
|dw:1339982936922:dw|
From the diagram, what trigo. ratio should we use to find the height of the building?