To solve this problem, we can use similar triangles and the properties of right triangles.
a. To find the distance from the parking lot to the beach, let's call the distance x. By setting up a proportion using the similar triangles, we have:
x / 18 = (18 + 32) / 32
Solving for x:
x = 18(50) / 32
x = 28.125 meters
Therefore, the distance from the parking lot to the beach is 28.125 meters.
b. To find the distance from the parking lot to the refreshment stand, we can use the Pythagorean theorem on the right triangle formed by the refreshment stand, parking lot, and beach.
Let's call the distance from the parking lot to the refreshment stand y. By using the Pythagorean theorem:
y^2 + 18^2 = 32^2
y^2 + 324 = 1024
y^2 = 1024 - 324
y^2 = 700
y = √700
y ≈ 26.457 meters
Therefore, the distance from the parking lot to the refreshment stand is approximately 26.457 meters.