Geometry

posted by .

One pizza has a diameter twice the diameter of a smaller pizza. what is the rato of the area larger pizza to the area of the smaller pizza?

  • Geometry -

    4/1

    proof:
    let the radius of the smaller be r
    let the radius of the larger be 2r

    area of smaller = πr^2
    area of larger = π(2r)^2 = 4πr^2

    ratio of larger to smaller = 4πr^2/(πr^2) = 4/1 or 4 : 1

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Math 157

    A 7 inch pizza cost $8 and a 14 inch pizza costs $20. Tommy says the smaller pizza is a better buy because the larger pizza is twice as big and more than twice as expensive. Do you agree with his reasoning?
  2. Geometry check my answer?

    Small Pizza- radius 6 in. cost $9.75 Medium- radius 8in cost $12 Large-diameter 20 in cost $16.50 The edge is stuffed with cheese, and its the best part of the pizza/ What size has the most pizza edge pr dollar?
  3. algebra

    You have been put in charge of making pizza for the fundraiser. You are told to make the larger pizzas with a radius 3 less than twice the radius of the smaller pizzas. The difference in the area of the pizzas is to 24 pi. Find the …
  4. math

    Tiny is ordering a pizza and cant decide between a round pizza with a diameter of 4 inches or a rectangular pizza that is 12 inches by 14 inches. The round pizza is 9.50 and the rectangular pizza is 10.00. Which is larger?
  5. geometry

    word problem You and 3 friends order a 24 in pizza (the diameter is 24 inches) what is the area of the pizza?
  6. math

    A 4'' diameter round pizza with area As and a 12'' diameter round pizza with area Ab. What is the ratio Ab/As?
  7. geometry

    Papa's Pizza charges $0.05 per square inch of pizza. Pizza is measured by the diameter. How much will pap's Pizza charge for a 7-inch, 10-inch, and 14-inch pizza?
  8. maths

    Small pizza Diameter = 15 cm Medium pizza Diameter = 30 cm I$ a medium pizza twice as large as a small pizza?
  9. Pre ALgebra

    If a pizza with a diameter of 12 inches costs $10.99, based on area, about how much should a 15-inch pizza cost?
  10. Geometry

    How much more pizza is in a 12-in. diameter pizza than an 8-in. diameter pizza?

More Similar Questions