Answer:
The walkway is approximately 34.64 feet long
Explanation:
The length of the sides of the equilateral triangle shaped the city garden = 40 feet
The path of the walkway = From the midpoint of a side to the opposite vertex
Therefore, we have;
Let x, represent the length of the walkway
We have that the x, a side of the equilateral triangle, and half the side of the location of the gate, forms a right triangle, with a side of the equilateral triangle representing the hypotenuse side
Therefore, we have;
40² = x² + (40/2)²
40² = x² + 20²
x² = 40² - 20² = 1200
x = √1200 = 20·√3
The length of the walkway = x = 20·√3 ≈ 34.64 feet.