Re: Related Rates Question

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**djmordigal** Hello,

I'm having trouble with this related rates problem:

Two sides of a triangle are 4m and 5m in length and the angle between them is increasing at a rate of 0.06rad/s (radians per second). Find the rate at which the area of the triangle is increasing when the angle between the sides of fixed length is $\displaystyle pi/3$.

$\displaystyle A = \frac{1}{2} ab \sin{\theta}$ , where a and b are the side lengths and $\displaystyle \theta$ is the angle between them.

sub in your constants and take the time derivative ...