dani118 dani118
  • 21-04-2017
  • Mathematics
contestada

the ratio of the diameter of two circles is 2:5 what is the ratio of the areas of the circles

Respuesta :

kettboy kettboy
  • 21-04-2017
[tex]A=\pi r^2= \frac{\pi d^2}{4} [/tex]
(at diameter = 2): [tex] \frac{\pi\times2^2}{4} = \pi [/tex]
(at diameter = 5): [tex] \frac{\pi \times 5^2}{4} = \frac{25}{4} \pi[/tex]

ratio = [tex]\pi[/tex]:[tex] \frac{25}{4} \pi[/tex] = [tex]1: \frac{25}{4} [/tex] = [tex]4:25[/tex]
Answer Link

Otras preguntas

What is the answer to 215 rounding to the nearest 10 Math
Six friends go out to lunch and decide to split the bill evenly. The bill comes to $61.56. How much does each person owe? A. $21.31 B. $10.26 C.$10 D. $8.79
820 round to the nearest hundred
A gas tank contains 5.3 gallons.the capacity of the tank is 12.5 gallons. how much will it cost to fill the tank at $1.30 per gallon
What is the absolute location of Europe?
what is the nearest ten and hundred of 829 when it is round
is the square root of 130 rational or irrational please explain
how did silk weaving develop in the byzantine empire? NEED HELP ASAP
What is The Chief products in Mexico????
a wage rate based on the amounts produced by an employee is called______?