In your right-angled triangle, the hypotenuse would be the 1.6 km road and its height would be the 400 m
The horizontal, or the "run", would be the side you have to find by Pythagoras.
Don't forget to change to either metres or km.
A road 1.6 km long rises 400 m. What is the angle of elevation of the road?
I don't known which numbers go to which sides. I can do the rest once I can label the triangle. Thanks!
4 answers
THATS WHY I COULDN'T GET THE RIGHT ANSWER! i didn't convert the meters! thank you
The rise is the vertical dimension y and the length of the road (1.6 km) is the hypotenuse of a right triangle-- tha actual distance covered.
On a map, the length of the road would be the x (horizontal) distance covered, but that is not what I think they mean by the "road length" here.
The angle of elevation is
sin^-1 0.4/1.6 = sin ^-1 0.25
= 14.48 degrees
On a map, the length of the road would be the x (horizontal) distance covered, but that is not what I think they mean by the "road length" here.
The angle of elevation is
sin^-1 0.4/1.6 = sin ^-1 0.25
= 14.48 degrees
yes that's the answer i got drwls thanks the m km messed me up =]