find the roots of the following equation class 10 exercise 4.3 questions no. 3
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Step-by-step explanation:
Answer:
Length of the boundary = Perimeter of a semicircle
∴(π+2)r=36m=(
7
22
+2)×r=36
(
7
22+14
)×r=36m=
7
36
×r=36⇒r=7m
Area of the park = Area of the semicircle
A=
2
πr
2
sq. units =
7
22
×
2
7×7
=77m
2
∴ Area of the park = 77 m
2
.
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