7.10 Math k12 help pls

1) Perimeter of a regular 12-sided polygon =24 inches.

2) Perimeter of a regular 9-sided polygon =45 feet.

3) length of the side of a regular hexagon = 2.1 cm

4) length of the side of a regular 8-sided polygon = 6.5 feet

5) length of the side of a regular 12-sided polygon = 10 feet

Step-by-step explanation:

1) Given,

Perimeter = 12(2) = 24 inches.

Option c) 24 in. is the correct answer.

2) Given,

Perimeter = 9(5) = 45 feet.

Option a) 45 ft. is the correct answer.

3) Given,

⇒ 6a = 12.6

⇒ a = 12.6

⇒ length of the side, a = 2.1 cm

Option c) 2.1 cm is the correct answer.

4) Given,

⇒ 8a = 52

⇒ a = 52/8

⇒ length of the side, a = 6.5 feet

Option a) 6.5 ft is the correct answer.

5) Given,

⇒ 12a = 120

⇒ a = 120/12

⇒ length of the side, a = 10 feet

Option a) 10 ft is the correct answer.

step-by-step explanation:

the true statements are:

r = set of real numbers

n = set of natural numbers, 1,2,

w = n u{0} = {0,1,}

answer. d.289 hope that