1. Mahala is standing and fishing on a dock that is 2 1/4 feet above the surface of the water in the pond. Her baited hook is 1.5 feet below the surface of the water. The surface of the water is represented by the rational number 0. Use the number line to graph the distance the dock, point D, is above the water and the hook, point H, is below the water. Make sure you label each point appropriately.
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Answer:
211/4 1.4
Step-by-step explanation:
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Given: A fish is a little way below the surface of a lake. If the critical angle is 49 o, then the fish could see things above the water surface within an angular ring at θ o
To find the value of θ
Solution:
From the given figure it is clear that,
angular range is twice the critical angle.
Critical angle, θc
=49 ∘
Therefore, θ=2×θc
θ=2×49 ∘
θ=98
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