So the question is, Eric sees an aircraft in the sky. The aircraft is at a horizontal distance of 25Km from Eric. The angle of elevation is 22°. How high is the aircraft?

Working out and answer :

My question is how do you know where to put the 25Km on the triangle cuz i always get confused.

Reply 6

branx

Original post by TrishaChou1

So the question is, Eric sees an aircraft in the sky. The aircraft is at a horizontal distance of 25Km from Eric. The angle of elevation is 22°. How high is the aircraft?

Working out and answer :

My question is how do you know where to put the 25Km on the triangle cuz i always get confused.

maybe i'm the one reading the question wrong but I'm pretty sure you have your triangle wrong
Screenshot 2021-03-04 at 12.00.49.png

it said the plane is 25km away at a horizontal not vertical plus its asking how high the plane is and you usually don't use the hypotenuse for height
hope this helps!

Reply 7

TrishaChou1

Original post by braindeadpog

maybe i'm the one reading the question wrong but I'm pretty sure you have your triangle wrong
Screenshot 2021-03-04 at 12.00.49.png

it said the plane is 25km away at a horizontal not vertical plus its asking how high the plane is and you usually don't use the hypotenuse for height
hope this helps!

oh ok yh i think your right x