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#### mathsheadache

##### Member

- Oct 10, 2014

- 52

a) Form two equations involving r and θ, where θ is measured in radians.

b) Solve these equations simultaneously to find r and θ.

Help to solve? Cant understand the question very well.

I think the arc length formula was

length=\(\displaystyle \frac{n}{360}\cdot2\pi(r)\)

\(\displaystyle \therefore10=\frac{n}{360}\cdot2\pi(r)\)

The question states, Form two equations involving r and θ, where θ is measured in radians.

So would we have to arrange the formula to find the r and \(\displaystyle \theta\)