2 years ago

How do you solve #18?

Mathematics

2 answers:

LiRa [457]2 years ago

5 0

Pizzas are circles. Area of circles is (pi)r^2.

Then find the cost per in.^2

Smallest cost per in.^2 is better buy.

Thepotemich [5.8K]2 years ago

5 0

The formula for area is A = pi × radius^2. In this case, you are given diameter. Cut the diameter in half yo find the radius and plug the radius into the equation (Ex: for the first pizza the setup would be A = pi × 4^2.)

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