From a hot air balloon, the angle between a radio antenna straight below and the base of the library downtown is 57°, as shown below. If the distance between the radio antenna and the library is 1.3 miles, how many miles high is the balloon?
balloon
57° ?
antenna
library
Trigonometry Placement Test Sample Items

A. 1.3 sin 57°
B. 1.3 cos 57°
C. 1.3 tan 57°
D. 1.3sin57° E. 1.3tan57°

Question

From a hot air balloon, the angle between a radio antenna straight below and the base of the library downtown is 57°, as shown below. If the distance between the radio antenna and the library is 1.3 miles, how many miles high is the balloon?
balloon
57° ?
antenna
library
Trigonometry Placement Test Sample Items
￼￼￼￼￼
￼￼
￼￼￼A. 1.3 sin 57°
B. 1.3 cos 57°
C. 1.3 tan 57°
D. 1.3sin57° E. 1.3tan57°

anonymous · Answer

@Faris.a7x

sin 57º=x/1.3 
so
x=1.3SIN57º