Seudónimo Seudónimo

03-06-2017
Mathematics

contestada

Find the area of the regular 20-gon with radius 77 mm.

Respuesta :

wolf1728 wolf1728

03-06-2017

The area of a polygon equals
area = circumradius² * number of sides * sin (360 / # of sides) / 2
area = 77² * 20 * sin (360 / 20) / 2
area = 77² * 20 * sin (18) / 2
area = 118,580 * 0.30902 / 2
area = 36,643.59 / 2
area = 18,321.8 square millimeters

Answer Link

Otras preguntas

Read the following text and answer the question. Exactly how bad is the job situation going to be? An Organization for Economic Cooperation and Development stu

Marie is reluctant to marry because she is worried that her husband might cheat on her. you would tell her that adultery is

The goal of your research paper is to compare the climate and weather of two cities on the same latitude. Your paper should answer these questions: What is the

please help I’ll give brainliest

Find the value of x. 5 8 120 120 120 5 5 x = [?]

please help i need to turn this in

What is semi-tractor and trailer can be use for?

what is x? please help

How would a negative bias most likely enter into a radio report? A. Slow, gloomy background music B. Sepia filters on photos C. Fast, upbeat background music D.

Oscar and Ruth walk to school. Oscar walks 1/4 of a kilometre to school. His walk is 2/3 of the distance that Ruth walks to school. What is the total distance,