PLEASE HELP 5. Find the perimeter of each of the regular polygons described below.

a. A square with sides measuring 6 centimeters

b. An equilateral triangle with sides measuring 7 inches

c. A regular heptagon with sides measuring 4 feet

d. A regular nonagon with sides measuring 9 inches.

Which of the following are independent events? a) knowing that it is going to rain tomorrow, and bringing an umbrella to schoolb) knowing that you have to get up early tomorrow, and going to bed before 9 p.mc) knowing that it is going to rain tomorrow, and going to bed before 9 p.md) knowing that you have a test in school tomorrow, and studying thw night before