Please help me out wit this question

Area of the circular sidewalk = 405 m²

Step-by-step explanation:

Radius of the circular flower bed = 20 m

Area of the circular bed = πr²

Here r = radius of the circle

Area of the circular bed = π(20)²

                                        = 400π square meter

Radius of the larger circle = Radius of the flower bed + width of the sidewalk

= 20 + 3

= 23 m

Area of the larger circle = π(23)²

                                        = 529π m²

Area of the circular sidewalk = Area of the larger circle - Area of the flower bed

                                         = 529π - 400π

                                         = 129π

                                         = 129(3.14)

                                         = 405.06 square meters

                                         ≈ 405 square meters

18

step-by-step explanation:

draw the shape and you will see that f and k are actually at adjacent vertices (points of the hexagon that are neighboring).   so find the distance between (1,2) and (4,2).   that is easy since (1,2) and (4,2) is just a vertical distance to count, which is 3.   it is a regular polygon which means all sides are congruent.   you have 6 sides (hexa) so multiply 6 by 3 to receive 18.

i need more details sorry

step-by-step explanation: