SOLUTION: What should be the diameter (d) of a pizza so that it has the same area as two 10-in.-diameter pizzas? Do you get more to eat with a 15.-in. pizza or two 10-in. pizzas?

SOLUTION: What should be the diameter (d) of a pizza so that it has the same area as two 10-in.-diameter pizzas? Do you get more to eat with a 15.-in. pizza or two 10-in. pizzas?

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Question 442827: What should be the diameter (d) of a pizza so that it has the same area as two 10-in.-diameter pizzas? Do you get more to eat with a 15.-in. pizza or two 10-in. pizzas?
Answer by jorel1380(3719) (Show Source): You can put this solution on YOUR website!
πr2=25π+25π
πr2=50π
r2=50
r=√50=√25√2=5√2
d=2r=10√2.
------------------------------
2-10 inch=25π+25π=50π
15 in=(7.5)2π=56.25π
The 15 inch is larger..

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