Question

A garden shop sells 15​" by 15​" square stepping stones for the same price as 20​" round stones. If all stepping stones are the same​ thickness, which option gives the most rock for the​ money?
The area of a square stepping stone is ( ? ) in.2 and the area of a round stepping stone is ( ? ) in.2​, so the option that gives the most rock for the money is the (round or square)?

Answer 1

Answer:

Round stone

Step-by-step explanation:

area of square stone, AS = 15 × 15 = 225sqin

area of round stone, AR = 3.14 x (20^2)/4 = 314sq in

since AR is larger than AS, then the round stone gives more rock for the money