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A circular part is cutted from a rectangular plate. Then the cutted plate is heated constantly. What will be the effect of heat on the circular hole? (a). the size of hole will increase. (b). the size of hole will decrease.

A circular part is cutted from a rectangular plate. Then the cutted plate is heated constantly. What will be the effect of heat on the circular hole?
(a). the size of hole will increase.
(b). the size of hole will decrease.
 

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Grade:12

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