A right angle triangle is shown with the measure of the acute angle at the tip equal to 40 degrees and length of the hypotenuse is equal to 220 meters. What is the height, in meters, of the river dam?

http://learn.flvs.net/webdav/assessment_images/educator_geometry_v14/pool_Geom_3641_0408_07/image0074e2d9b99.jpg

A. 220 by tan 40
B. 220 cos 40°
C. 220 by cos 40
D. 220 sin 40°

If you answer correctly I'll give you a medal OuO

Question

A right angle triangle is shown with the measure of the acute angle at the tip equal to 40 degrees and length of the hypotenuse is equal to 220 meters. What is the height, in meters, of the river dam? 

http://learn.flvs.net/webdav/assessment_images/educator_geometry_v14/pool_Geom_3641_0408_07/image0074e2d9b99.jpg

A. 220 by tan 40 
B. 220 cos 40° 
C. 220 by cos 40 
D. 220 sin 40° 

If you answer correctly I'll give you a medal OuO