The outer circle of the driveway has a diameter of 30 feet and the inner circle of the driveway has a diameter of 12 feet. The area of the inner circle of the driveway will be covered with sod. The area between the inner circle and the outer circle of the driveway will be covered using cobblestone pavers. How many square feet of sod is needed to cover the inner circle of the driveway? How many square feet of cobblestone pavers are need to cover the area between the outer circle and inner circle of the driveway? (round up to the nearest whole square foot if necessary).
Added by Susan R.
Step 1
The formula for the area of a circle is A = πr^2. Substitute r = 12 into the formula: A = π(12)^2 = 144π square feet. Rounded to the nearest whole foot, the area of sod needed is approximately 453 square feet. ** Show more…
Show all steps
Your feedback will help us improve your experience
Nicholas Salas and 74 other Geometry educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
A driveway design site recommends that circular driveways have at least a 30 ft diameter center surrounded by at least a 20 ft wide drive lane. Find the area of a concrete drive that is built to the minimum specifications (to the nearest square foot).
Tyna S.
Madhur L.
A sidewalk with a uniform width of 3 feet is to be placed around a circular garden with a diameter of 24 feet. Find the exact area of the sidewalk.
Trigonometric Functions
Right Triangle Trigonometry
Recommended Textbooks
Geometry A Common Core Curriculum
Geometry
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD