tan 70Co D. 329. Theheight of a building is 50 5 m. Then. from a point on theof the building themeasure of the angle of elevation of the top othe building iA. 45 B. 60C. 30D. 15angles of elevation of the top of a tower from two poina and b la b) from its foot on the same side of the towe30. If the measures of theonground at distancemeasure 30 and 60. then the height of the tower i..Đ.va+bB.Va-bŃ. JabD.

tan 70Co D. 329. Theheight of a building is 50 5 m. Then. from a point

1.	tan 70Co D. 329. Theheight of a building is 50 5 m. Then. from a point on theof the building themeasure of the angle of elevation of the top othe building iA. 45 B. 60C. 30D. 15angles of elevation of the top of a tower from two poina and b la b) from its foot on the same side of the towe30. If the measures of theonground at distancemeasure 30 and 60. then the height of the tower i..Đ.va+bB.Va-bŃ. JabD.
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