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spoc21
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Homework Statement
The base of an isosceles triangle is 20 cm and the altitude is increasing at the rate of 1 cm/min. At what rate is the base angle increasing when the area is 100 cm^2?
Homework Equations
The Attempt at a Solution
Im very unsure about my solution method. I have attached a copy my solution in pdf format, and would really appreciate if someone could take a quick look at it, and preferably tell me if its right or wrong..Thanks