Use a polar coordinate system to plot the point with the given polar coordinates. Then find another representation ​(r, theta​) of this point in​ which: ​ (a) rgreater than​0, 2piless thanthetaless than4pi. ​

(b) rless than​0, piless thanthetaless than3pi.

​(c) rgreater than​0, minus2piless thanthetaless than0.

Solve these problems: 1.what is the perimeter of an equilateral triangle with sides measuring 6cm? 2. a regular pentagon has sides measuring 3.2 cm. what is its perimeter? 3. a regular decagon has sides of 3.5mm . what is it’s perimeter? 4. a regular octagon has a perimeter of 64cm. what is the length of one of the sides? 5. a regular hexagon has a perimeter of 72mm . what is the length of one of the sides? 6. what is the perimeter of a rhombus with sides measuring 11m?