a garden is 56m by 35m.the owner decided to enlarge it by digging a strip 4m wide all around it. find the area of the strip and the new perimeter
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Answer:
the area of strip is 380 m²
and perimeter of new field is 198 m
Step-by-step explanation:
length of field is 56 m
breadth of field is 35 m
∴ area of this filed = length × breadth
= 56 x 35
= 1960 m²
the dimension of field was extended by 4m
∴ new length = 56 + 4
= 60m
new breadth = 35 + 4
= 39m
∴ area of this new field = l x b
= 60 x 39
= 2340 m²
∴ area of strip = 2340 m² - 1960 m²
= 380 m²
perimeter of new field = 2 (l +b)
=2 ( 60 +39)
= 2(99)
= 198m
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