Login or Sign Up

Ask a New Question

by what factor must the radius of a circle be multiplied to make the area of the cicle 3 times as large?

area is proporationalto the square of radius.

area= k *radius^2

Area2/area1=3= k radius2^2/radius1^2

radius2/radius1= sqrt 3

Similar Questions

How does the area of a circle change if the radius is multiplied by a factor of n, where n is a whole number?THANK YOU!

Top answer: First see my correction to your previous question of this type Read more.
he diameter of a circle is the radius multiplied by ___. Responses A 22 B 33 C 44 Question 2 If a circle has radius 3, you find

Top answer: Question 1: B 33 Question 2: A 66 Question 3: A 28.26 Read more.
If a circle has a 3cm radius,1. By what factor does the circumference change if the radius is tripled? C = 2pi * radius Why is

Top answer: I just answered a very similar question right above this one, give this question a go based on that Read more.
Estimate the area of the circle. Use 3.14 or 22/7 for pi. There is a circle with a diameter of 28So first think I did was I

Top answer: Okay so I know the answer to the question so let me explain. You can ignore the estimate part. To Read more.
The area of a circle is given by the formula A = ðr2, where r is the radius. If increasing the radius of a circle by 1 inch

Top answer: well, if the original radius is r, we have π(r+1)^1 = 100π Or, just note that it's obvious that a Read more.
The area of a circle is given by the formula A+pier^2, where r is the radius. If increasing the radius of a circle by 1 inch

Top answer: 9 inches. Read more.
The radius of circle a (which is 6) is multiplied by 1/2. Describe the effect of the change of the area.

Top answer: since area grows as r^2, the area grows by (1/2)^2 = 1/4 Read more.
Tomaz draws a circle and dilates it on a photocopier using a scale factor of 3. If the original circle has a radius of 3 cm,

Top answer: The diameter of the original circle is 2*3 = <<2*3=6>>6 cm The radius of the dilated circle is 3*3 = Read more.
A circle is shown with center at point P.The radius of circle P is 8 cm. Area equals pi R squared, where R is the radius of the

Top answer: The approximate area of the circle can be calculated using the formula A = πr^2, where A is the Read more.
A circle has a 3cm radius.1. By what factor does the circumference change if the radius is tripled? Explain. 2. By what factor

Top answer: C=2pI*radius if rad goes up by 3, C goes up by 3 area=pi*(rad)^2 double rad, area goes up by Read more.