tati03
tati03
13-04-2018
Mathematics
contestada
How do you solve #18?
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lol1107
lol1107
13-04-2018
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.
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pvbloo
pvbloo
13-04-2018
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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