the base of an isosceles triangle is 10 ft long and the base angles are decreasing at a rate of 2 degree per secnd. find the rat
e of change of the area when the base angles are 45 degree
1 answer:
We have the height h is
<span>h = 5tanθ </span>
<span>a = 5h = 25tanθ </span>
<span>da/dt = 25sec^2θ dθ/dt </span>
<span>Now just plug in your numbers (in radians!)</span>
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Second choice.
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