the shape of a garden is rectangular in the middle and semi circular at the ends as shown in the diagram. find the area and the perimeter of this Garden [length of rectangle is 20-(3.5+3.5)m]
see the diagram...
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prettymeghanas123:
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10th and u
11th
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andhra pradesh (vishakapatnam)
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Answers
Answered by
5
area of rectangle = l×b
= 13×7
= 91m^2
area of semi circles =2× 22/7 × 3.5 × 3.5 × 1/2
= 38.46m^2
add both
91 + 38.46
121.46m^2 = area of garden
perimeter of rectangle = 2(l+b)
= 2(13+7)
= 40m^2
perimeter of semi circles = πr
= 22/7 × 3.5
= 11
add both
40 + 11
51m^2 = perimeter of garden
hii meghana
hlo
how
sorry its not 51 but its 62
becuase i added perimeter of only one semi cirlce
when we add 11 as perimeter of another semi circle
it becomes 62
but back answer is 48
no it isn't possible
send me the pic from where you have seen the answer
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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