joycel410 joycel410

28-06-2018
Mathematics

contestada

Find the area of a circle having a circumference of 3pi

A=?
2.25pi
3pi
9pi

Respuesta :

wolf1728 wolf1728

28-06-2018

circumference = 2 * PI * radius
radius = circumference / 2 * PI

radius =3 PI / 2 PI
radius = 1.5 PI

Circle Area = PI * radius ^2
Circle Area = 2.25 PI

Answer Link

Otras preguntas

Which sentence best describes the faulty parallel structure in this sentence? He aims to earn a little and spending less than he earns. The first aim is stated

Which statement describes an event that was important to the unification of Italy? A. Count di Cavour persuaded Otto von Bismarck to help Sardinia fight the Aus

Which of the following sentences is written correctly? A. The helpless baby crying over not having anything to eat right away. B. When the baby cries loudly bef

what is the simplest form of 10/15

Federalism gives both state and national governments the power to?

Just-in-time management could be best defined in which of the following ways?

What was the first science affected by the Scientific Revolution?

The physical and chemical properties of a substance are used to identify the substance and to see how it will behave in the presence of other substances. Whic

the angle is 1/5 of the circle. what is the measure of the angle?

what are the advantages and disadvantages of using flashcards and rote form of studying?