dancer27 dancer27

13-04-2017
Mathematics

contestada

How do I find the area of a regular octagon with perimeter of 48cm?

Respuesta :

connorkelley507 connorkelley507

13-04-2017

A≈173.82cm² that's the answer.

Answer Link

13-04-2017

An octogon has 8 sides and each side is 48/8=6cm

The area of any regular polygon when the side length is known is:

A(n,s)=ns^2/(4tan(180/n)) in this case

A(8,6)=288/(4tan22.5)

A=173.82cm^2 (to nearest hundredth of a cm^2)

Answer Link

Otras preguntas

During the winter, many creatures are able to drastically decrease their body temperatures and energy use and enter a reduced state of metabolism. This state i

A gardener plants a bed of flowers such that he plants twenty day lilies in the first row, twenty-six day lilies in the second row, and thirty-two day lilies in

Rising action, climax, and falling action are all part of

deindustrialization was a problem in the 1920s but has decreased since then true or false

Can you answer these questions for me plz I need them before Monday ty

Please help me with this question

Which program was created in 1933 to build things like roads and national parks?]?

Which point is a reflection of point R (-2, 9) first across the y-axis and then across the x-axis? A : (-9, -2) B: (-2,-9,) C: (2, -9) D: (9, -2)

HURRY FOR 55 POINTS AND BRAINLIEST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! __________________________________________________________________________________________ Ur

What one concept does the Navy instill in SEAL recruits? Why is this so important?