At 20°C, a brass cube has an edge length of 34 cm. What is the increase in the cube's surface area when it is heated from 20°C to 67°C?

Answer 1

67-20=37°c
34cm=20°c
?cm=37°c
37×34÷20=62.9cm.
SA=6S(squared).
=6(62.9)squared.
=6×3956.41.
SA=23738.46cm squared

Answer 2

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