26-04-2017
Mathematics

contestada

The circumference of a circle is 25.12cm. What is the area of the circle? Use 3.14

Respuesta :

apologiabiology apologiabiology

26-04-2017

c=2pir
area=pir^2

given
c=25.12
25.12=2pir
pi=3.14
25.12=2(3.14)r
25.12=6.28r
divide both sides by 6.25
4=r

sub into other
area=pir^2
area=pi4^2
area=16pi
area=16(3.14)
area=50.24

the area is 50.24 square cm

Answer Link

Otras preguntas

SOMEONE PLEASE THIS ASAP!!!! ILL GIVE BRAINLIEST!!!! Why does family gives meaning to your life?

Determine whether the given topic is more obviously suitable for a report or an essay. annoying people on cell phones

In an attempt to resolve escalating disputes, lord north issued the_____, which eliminated all taxes on a colony that paid for its defense and governors salary

Anna and Tim saw two movies in one day. The two movies lasted four hours. One movie was half an hour longer than the other. How many hours did the shorter movie

The atomic number of an element is based on the _____. number of electrons around its core mass of its nucleus number of protons in its nucleus number of neutro

describe the different means of transport used in india

w(x)=5^x odd or even

Compute the exact value of the function for the given x-value without using a calculator. (2 points) f(x) = 3x for x = -1 a) -1/3 b) 1/1 c) -3 d) 1/3

What happens to lac when E. coli is present

the planet neptune orbits the sun. its orbital radius is 30.1 astronomical units (AU). assuming neptunes orbit is circular, what is the distance it travels in a