Question

side of a square table is 2 m 80 cm long. It is extended by digging a strip 30 m wide all around it find
area of the enlarged table and also the increase in the area of the table​

Answer 1

Explanation:

side 280 cm

area= 280×280=78400cm or 784 m

on digging it will become 280+ 2×30

280+60=340cm

area =340×340=115600cm or 1156 m

increase in area =1156-784

=372m

note-area is in square

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