More elevation problems with weird wording...

M

Mathisconfusing101

Junior Member
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Jun 19, 2006
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Im not sure what to do here...

The odometer on a car lets us know when the car is running out of gas. The pointer on the odometer is 6 cm long. When the angle of elevation of the pointer is 32°, the car is low on gas. Find the height of the tip of the odometer when the car is low on gas.

first of all the odometer is the milege.. not the gas... but what are they saying here?
 
well, whatever...

You have a right triangle with hypotenuse = 6,
angles 90, 32 and 58: simply calculate the triangle's legs.
 
Hello Mathisconfusing :)

In other words you need to use Law of Sine:

SinAa=SinBb\displaystyle \frac{SinA}{a}=\frac{SinB}{b}

Have you ever seen this before?
 
Remember the angle of elevation is the distance between the line of sight and the horizontal Mathisconfusing.
Dennis wouldnt it be like this?
tip7aj.jpg
 
Geezzz Johnboy, you never seen a "meter" in a car? :shock:

B
.
.
C..........................A

Tip is at B
AB = 6
angle at A = 32 (so angle at B = 58)

Calculate BC (which is how high the tip is)
 
Hey I am jonboy not jonman, havent looked at cars alot. Thanks for the clarification.
Well my drawing is still propitious, it just needs to be flipped vertically.
 
jonboy said:
Hey I am jonboy not jonman, havent looked at cars alot. Thanks for the clarification.
Well my drawing is still propitious, it just needs to be flipped vertically.
Click to expand...
Your drawing is neither propitious (at least, I was not inspired by it) nor correct. Read what you wrote, then look ay what Denis told you.

jonboy, I don't mean to sound impropitious, but you may wish to go work a couple thousand more problems before you try to help any more students.
 
How about this? The angle of elevation is betweeen the the line of sight and the horizotontal.
tip7uj.jpg
 
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