Circle Area Real World Problems

Mr. Blain designed a circular walkway in front of his house. The diameter of the walkway is about 6 feet long. How many square feet of bricks will he need to buy? Use 3.14 for π.

• 18.84 square feet

• 113.04 square feet

• 9.42 square feet

• 28.26 square feet

A circular flowerbed has a radius of 24 feet. If one tulip bulb requires 4 squared feet soil, how many tulips can be planted in the bed?

• 1808.64 sq ft

• 452 tulips

• 1808 tulips

• 226 tulips

A circular flowerbed has a radius of 24 feet. If one tulip bulb requires 4 squared feet soil, how many tulips can be planted in the bed?

• 1808.64 sq ft

• 452 tulips

• 1808 tulips

• 226 tulips

A baker is making a giant pizza with a diameter of 42 inches. a large jar of tomato sauce can cover 90 square inches of pizza. How many jars of tomato sauce does the baker need to buy to cover all the pizza?

Mathematical Equivalence

ON

How many cookies are there?

• 48 cookies

• 24 cookies

• 8 cookies

• 4 cookies

Explain how the concept of finding the area of a circle can be applied to real-life problems.

• Counting the number of people in a circular area

• Determining the temperature of circular objects

• Calculating the amount of space inside circular objects such as wheels, plates, or fields.

• Measuring the weight of circular objects

Alisha made a 16-inch pizza. She ate a quarter of the pizza for lunch. Find the area of the remaining pizza. Use 3.14 as an approximation for π. Use "sq. in." as your units.