Question

there is 2m broad boundary all around a rectangular lake of length 70 m and breadth 30m find the area of the boundary of the lake​

Answer 1

Step-by-step explanation:

area boundary of lake =( length ×height+breadth×height)2=

2(70×2+2×30)=2(140+60)=2(200)=400m^2

Answer 2

Answer:

Here have your answer

Step-by-step explanation:

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