Answer:
Vertical change in the elevation is 1.06 miles.
Step-by-step explanation:
Distance between the surveyor C and the point A on a mountain = 5 miles
Angle of elevation of the point A from surveyor = 12°
We have to calculate the vertical height AB of the point A from the surveyor.
tan C =
tan 12° =
tan 12° =
h = 5tan12°
h = 1.063 miles
h ≈ 1.06 miles
Therefore, vertical change in the elevation is 1.06 miles.
Answer:
4
Step-by-step explanation:
use the Pythagoras' theorem
formula for an ABC triangle( right angled)
AB is height
BC is hypotenuse
CA is length
=
+
in your case
AB is 7
BC is 8
CA is unknown so we write x
=
+
64=49+
64-49=
15=
=x
3.87=x
4=x