The shape of a garden is rectangular in the middle and semi circular at the ends. find the area and perimeter of this garden(length of rectangle is 20-(3.5+3.5)metres)
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Answered by
15
hey mate here is ur answer
area of rectangle = l × b
= 7 × 20
= 140 cm square
area of 2 semicircle = π r^2
=22÷7 × 7÷2 × 7÷2
=77÷2
=38.5 cm square
total area = 140 + 38.5
=178.5 cm ^ 2
hope this helps u
plzzz mark as brainliest
area of rectangle = l × b
= 7 × 20
= 140 cm square
area of 2 semicircle = π r^2
=22÷7 × 7÷2 × 7÷2
=77÷2
=38.5 cm square
total area = 140 + 38.5
=178.5 cm ^ 2
hope this helps u
plzzz mark as brainliest
Answered by
2
Answer:
20 m = Total length.
7 m = Diameter.
7 / 2 = 3.5 m = Radius.
= 20 - ( 3.5 + 3.5 ) = 20 - 7 = 13 m
= 7 m = Breadth.
Length × Breadth = area of rectangular field.
= 13 × 7 = 91 cm²
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