If a wire is bent in the shape of a square, the area of the square is 81 cmWhen
the same wire is bent into the form of a semicircular arc bounded by its diameter,
find the area of the shape so formed. (take n =
22
7.
Answers
Answered by
1
Answer:
Explanation:
length of each side of the square
=
√
81
=
9
perimeter of the square
=
4
⋅
9
=
36
total length of the semicircle
=
π
r
+
2
r
=
r
(
22
7
+
2
)
=
36
r
7
36
=
36
r
7
r
=
7
area of semicircle
=
π
r
2
2
=
22
7
⋅
49
⋅
1
2
=
77
s
q
.
c
m
(
o
p
t
i
o
n
3
)
Step-by-step explanation:
hope it helps you
Answered by
1
Answer:
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