Please help I will reward Brainliest

Here is a list of polygon names depending on the number of sides they have, starting with three and ending with ten.

3 sides - Triangle.

4 sides - Quadrilateral.

5 sides - Pentagon.

6 sides - Hexagon.

7 sides - Heptagon.

8 sides - Octagon.

9 sides - Nonagon.

10 sides - Decagon.

Step-by-step explanation:

Here is a list of polygon names depending on the number of sides they have, starting with 0 and ending with ten.

0 sides- Circle.

1 side- Henagon.

2 sides- digon.

3 sides - Trigon Triangle.  

4 sides-  Tetragon, Quadrilateral.

5 sides - Pentagon.

6 sides - Hexagon.

7 sides - Heptagon.

8 sides - Octagon.

9 sides - Nonagon.

10 sides - Decagon.

Step-by-step explanation:

(a) the volume of the cone is 20/3 in3

hence, option a is correct.

it will cost dollar $540

the living room is 3 which means if we divide 325/3 then we get $108

therefore if 1part of the living room cost $108 and 3 costed $325

then total 5part of the room will cost 5*108 which gives $540