Question

Iron sheet 50 cm x 20 cm is heated through
100 °C. If a = 12 x 10° / °C, the change in
area is
fA) 2.4 cm?
(C) 4.2 cm
(B) 3.4 cm?
(D) 5.3 cm​

Answer 1

a) 2.4 cm is the answer

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