To solve the problem, let's visualize the triangular roof over the rectangular dog house. Based on the description:
- The width at the base of the triangle (the distance from one wall to the other) is given as 5 feet, which represents the base of the right triangle formed by the roof.
- The roof forms a right triangle at the peak, meaning the peak of the triangle is directly above the midpoint of the base (the walls of the dog house).
To find the height of the triangle (the distance from the top of the wall to the peak), we can use the geometric properties of right triangles.
Since the roof is symmetrical and forms a right angle at the peak, we can split the triangle into two right triangles. Each of these smaller triangles will have:
- One leg as half the base of the triangle (which is \( \frac{5}{2} = 2.5 \) feet),
- The other leg as the height we are interested in finding,
- The hypotenuse is the sloped side of the roof, but we do not need to find this for the height.
Let’s denote the height as \( h \). Using the Pythagorean theorem for one half of the triangle:
\[ h^2 + (2.5)^2 = (5)^2 \]
Here, the base (5 feet) is split into two segments, each measuring 2.5 feet. Since we want just the height of the triangle, we only need to find \( h \):
However, we only need to calculate the height directly:
The situation described indicates that this is a right triangle where:
- The base is 5 feet (horizontal distance across),
- The total height from the wall to the peak can simply be calculated by creating a split triangle.
With symmetry, every leg comes down to:
-
Each right triangle forms two legs: \[ \text{One leg} = 2.5 \text{ feet (half the base)} \]
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The triangle's height forms a similar right triangle where both legs meet at a right angle, so to find \( h \):
Using symmetry:
- The height from the wall to the peak forms the other triangle leg, where the base to \( h \) can be calculated.
To find the height, we will calculate the height using:
Following standard calculation without hypotenuse invalidation, but height remains:
Therefore,: Given the context,
The height from the wall to the peak
- Is \( \sqrt{h^2 + (2.5)^2} = 5 \)
\[ h^2 = 5^2 - 2.5^2 \ h^2 = 25 - 6.25 \ h^2 = 18.75 \ h = \sqrt{18.75} \]
Calculating \( \sqrt{18.75} \):
\[ h \approx 4.3 \text{ feet} \]
Thus rounded to the nearest tenth, the height from the top of the wall to the highest part of the triangle peak is approximately 4.3 feet.