Circle A has area of 500 in2. The diameter of circle B is three times the diameter of circle A. Estimate the area of Circle B. NOT 1500!

Area ≈ 4,500

Step-by-step explanation:

Radius of Circle A

r = √

r =  √

r ≈ 12.62

Diameter of Cricle A

d = 2r

d = 2(12.62)

d = 25.24

25.25 x 3 =75.72 --> This is the diameter of Circle B

Radius of Circle B

r =

r =

r = 37.86

Area of Circle B

A =

A = (37.86)²

A = 4,503.09

0.16 or 16%

step-by-step explanation:

lets take a coin for example.

if you toss it twice, it has a 1/4 chance of landing on heads both times because 1/2 * 1/2 is 1/4.

with the cards, the chance of picking dog is 0.4. having two people pick one is like picking a card twice in a row. so 0.4 * 0.4 is 0.16, or 16%