MHB Stuck on the sides of a triangle problem

  • Thread starter Thread starter tony700
  • Start date Start date
  • Tags Tags
    Stuck Triangle
AI Thread Summary
The discussion revolves around solving for the sides a and b of a triangle given its height and base. The user has established equations using the Pythagorean theorem and the Geometric Mean theorem, resulting in three equations with three unknowns: a, b, and e. There is uncertainty about whether the angle between sides a and b is 90 degrees, which could affect the approach to solving the problem. The user seeks clarification on the complete problem to proceed effectively. The conversation emphasizes the need for a clear understanding of the triangle's properties to find the unknown sides.
tony700
Messages
5
Reaction score
0
I have figured out the triangle's height and base, but I need to figure out sides a and b. I have tried Pythagorean theorem and similar triangle ratios, but it is not working out. Please help. See picture below. Thank you.View attachment 6489
 

Attachments

  • problem2.jpg
    problem2.jpg
    11.5 KB · Views: 82
Mathematics news on Phys.org
We have that two right triangles and from the Pythagorean Theorem for those two we get:
$$464^2+e^2=a^2$$ and $$464^2+(1218-e)^2=b^2$$

From the Geometric mean theorem we have that $$464^2=e\cdot (1218-e)$$

Now we have three unknown variables, $a,b,e$, and three equations. So, we can find the values for $a,b,e$.
 
Is the angle contained by $a$ and $b$ equal to $90^\circ$? For that matter, what is the complete problem?
 
Seemingly by some mathematical coincidence, a hexagon of sides 2,2,7,7, 11, and 11 can be inscribed in a circle of radius 7. The other day I saw a math problem on line, which they said came from a Polish Olympiad, where you compute the length x of the 3rd side which is the same as the radius, so that the sides of length 2,x, and 11 are inscribed on the arc of a semi-circle. The law of cosines applied twice gives the answer for x of exactly 7, but the arithmetic is so complex that the...

Similar threads

Replies
2
Views
1K
Replies
3
Views
2K
Replies
59
Views
2K
Replies
20
Views
3K
Replies
4
Views
1K
Replies
9
Views
2K
Back
Top