A Rectangular Steel Plate with Dimensions of 30 Cm X $\degree$

question 56

Multiple Choice

A rectangular steel plate with dimensions of 30 cm x 25 cm is heated from 20 $\degree$ C to 220 $\degree$ C.What is its change in area? (Coefficient of linear expansion for steel is 11 x 10^-6/C $\degree$ . )

• A)0.82 cm²
• B)1.65 cm²
• C)3.3 cm²
• D)6.6 cm²

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