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

complete each of the sentence with the correct form of avoir: ils besoin d une calculatrice pour le devoir
Consider 3x=y . Complete the table for the equation
Can someone solve this question please!!!
hlp me with this math problem
The Medici’s were one of the most powerful families of the Renaissance. They gained power through their
2.2500÷45 ¿cuanto es?
Lisa the trainer has two solo workout plans that she offers her clients: Plan A and Plan B. Each client does either one or the other (not both). On Friday there
< 4. A small box holds 80 stuffed toys. A large box holds 155% as many stuffed toys as than a small box. How many stuffed toys does the large box hold?
True or False: You can insert a part into an assembly by dragging the part file from Windows Explorer into the Onshape window and dropping it in your assembly.
Find the slope of the line