Select all of the terms that apply to the shape. pentagon hexagon heptagon octagon nonagon decagon regular polygon irregular polygon concave convex

A curve is Said to be polygon if it is simple closed curve made up of entirely line segments.

A Polygon is said to be Concave, if it's Diagonal can lie outside the Polygon also.

A Polygon is said to be Convex if it's all Diagonals lies inside the Polygon.

A Polygon is said to be Regular if it's Convex Polygon and all it's Sides and angles are equal.For example, Equilateral Triangle, Square,Regular Pentagon.

A Polygon is said to be Irregular if it's all angles and all sides are not equal.For example ,Isosceles Triangle, Kite, Parallelogram, Pentagon.

1. Pentagon(5 Sides) = A Pentagon can be regular or irregular polygon and concave as well as convex Polygon.

2. Hexagon(6 sides), Heptagon(7 sides), Octagon(8 sides), Nonagon(9 Sides), Decagon(10 sides) →→→All of them can be regular or irregular polygon and concave as well as convex Polygon.

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6

figure c

step-by-step explanation:

hope this .