Solving a Trigonometry Problem with a Missing 90-Degree Angle

  • Thread starter Thread starter Keith
  • Start date Start date
  • Tags Tags
    Trigonometry
AI Thread Summary
The discussion revolves around solving a trigonometry problem that lacks a clearly defined 90-degree angle where line h meets the base. Participants agree that the problem cannot be solved without assuming this angle is 90 degrees. After confirming this assumption, the solution is found to be 3.3. The conversation highlights the ease of finding the answer compared to the time spent discussing the problem. Overall, the key takeaway is the necessity of the 90-degree assumption for solving the trigonometric issue.
Keith
Messages
15
Reaction score
1
trig%20problem%20help_zpsoykoqvm9.png


The Attempt at a Solution


I'm not sure where to start and the book doesn't show a 90 degree angle on the lower region where h meets the base. Can someone nudge me in the right direction please?[/B]
 
  • Like
Likes epenguin
Physics news on Phys.org
It isn't solvable unless you assume the line h meets the base at 90 degrees.
 
Nathanael said:
It isn't solvable unless you assume the line h meets the base at 90 degrees.

That's kinda what I was thinking. Thanks for confirming that.
 
All done. The answer is 3.3.
Took more time to post this thread then it did to solve. XD

Thanks again nathanael
 
There is also this solution: :wink:
findX.jpg
 
  • Like
Likes Keith, Mark44 and Nathanael

Thread 'Greatest possible value of a constant in polynomial'

Since ##px^9+q## is the factor, then ##x^9=\frac{-q}{p}## will be one of the roots. Let ##f(x)=27x^{18}+bx^9+70##, then: $$27\left(\frac{-q}{p}\right)^2+b\left(\frac{-q}{p}\right)+70=0$$ $$b=27 \frac{q}{p}+70 \frac{p}{q}$$ $$b=\frac{27q^2+70p^2}{pq}$$ From this expression, it looks like there is no greatest value of ##b## because increasing the value of ##p## and ##q## will also increase the value of ##b##. How to find the greatest value of ##b##? Thanks
View full post »

Similar threads

Trigonometry: finding an angle, area and length of sector of a circle
Replies
2
Views
2K
How Do You Calculate the Length of TP in a Common Tangents Problem?
Replies
4
Views
2K
Finding area of a non right angled triangle
Replies
9
Views
3K
How does angle of pic provided equal a/2 + 90 degrees?
Replies
5
Views
3K
How to assess whether the slope is more than 45 degrees?
Replies
5
Views
3K
Trigonometry Help: Calculating the Angle of Light Entry & Exit
Replies
9
Views
2K
I Optimization problem: Error mitigation while using trigonometry
Replies
18
Views
2K
What is the proof for the sum formula for sines?
Replies
16
Views
3K
What is 2nd Sine? Solving a Triangle with 13.5 Hypotenuse
Replies
17
Views
4K
Area of interior triangle of pyramid normal to a side length
Replies
3
Views
2K

Hot Threads

Recent Insights

Back
Top