sirens48 sirens48

02-01-2018
Mathematics

contestada

A circle has an area of 324π cm2. What is the radius?
a.
18 cm
c.
18π cm
b.
36π cm
d.
36 cm

Respuesta :

musiclover10045 musiclover10045

02-01-2018

area of a circle = PI*r^2

324PI = PI*r^2

divide both sides by PI

324 = r^2

r = sqrt(324)

r = 18

Answer is A 18 cm

Answer Link

Otras preguntas

¿ qué quieres __ hoy? A. Montar B. Idea C. Hacer D. Leer E. Escribir

Write the ratio as a fraction in simplest form. 18 84

Find the directional derivative of f at the given point in the direction indicated by the angle θ. f(x, y) = y cos(xy), (0, 1), θ = π/4

Which is a characteristic of pseudoscience?

If f(x) = 6x - 4, what is f(x) when x = 8? 2. 16 044 52

PLSSSS HELP NEED ASL

Why do you think people tend to share very private details about their life online? What information should stay private?

Given the equation (x - 1) ^ 2 + (y + 20) ^ 2 = 196 identify the center and radius

Rosalyn has three different-shaped containers that contain marbles. She has 3 round containers, each holding 16 marbles. She has 4 square containers, each holdi

Ashley and Robbin bought identical backpacks at different stores. Ashley’s backpack originally cost $65 and was discounted 25%. Robbin’s backpack originally cos