To find the angle of elevation formed by the ramp, we can use the sine function in trigonometry. The sine of the angle of elevation (\(\theta\)) can be calculated using the opposite side (the vertical difference between the levels) and the hypotenuse (the length of the ramp).
Given:
- The length of the ramp (hypotenuse) = 4 ft
- The vertical difference between the levels (opposite side) = 2 ft
Using the sine function:
\[ \sin(\theta) = \frac{\text{opposite}}{\text{hypotenuse}} = \frac{2}{4} = 0.5 \]
Now, we can find the angle \(\theta\):
\[ \theta = \arcsin(0.5) \]
From trigonometric values, we know that:
\[ \arcsin(0.5) = 30^\circ \]
Thus, the approximate angle of elevation formed by the ramp is:
\[ \boxed{30} \]
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