DUE VERY SOON HELP!

A regular octagon has an apothem of 14.1 yd and a side length of 11.7 yd. What is the area of the regular octagon? If necessary, round your answer to the nearest whole number.

A regular heptagon (7-sided figure) has an apothem of 21.8 m and a side length of 21 m. What is the area of the regular heptagon? If necessary, round your answer to 1 decimal place.

A regular pentagon has an apothem of 7.3 in. and a side length of 10.6 in. What is the area of the regular pentagon?

I thinks it's 193.313

Step-by-step explanation: Let’s take the pentagon with side length 11.7 yards and apothem length 14.1 yards

Area of pentagon is = 5/2 x s x a

= 5/2 x 11.7 x 214.1

=6262.425 square centimetres.

Example 2 : Find the area of a pentagon of side 11.7 yards and apothem length 14.1 yards ?

Solution :

Given,

s = 11.7 yds

a = 14.1 yds

Area of a pentagon

= 193.313 yds

step-by-step explanation:

what are the statements? and what do you mean by "216 2 1 6"?

m∠5 + m∠3 = m∠1   is true.

m∠5 + m∠6 = 180 is true

m∠2 +m∠3 = m∠6   is true

m∠2 +m∠3 +m∠5 = 180   is true