A steel wire, when bent in the form of a
square, encloses an area of 121 cm. The
same wire is bent in the form of a circleFind
area the circle
Answers
Answer:
Side of the square =
area
=
121
=11 cm
Perimeter of the square = 4×side=44 cm
Therefore, length of the wire = 44 cm
We know,
Circumference of the circle = Length of the wire
Therefore, Circumference of the circle = 44 cm
Let the radius of the circle be r cm.
Then, 2πr=44
2×
7
22
×r=44
r=7 cm
Therefore, area of the circle = πr
2
=
7
22
×49=154 cm
2
.
Explanation:
here is your answer mate❤❤❤❤
Answer:
Area of square = 121 cm.
side of square = √121cm
= 11 cm.
perimeter of square = 4 × side
= 4×11
= 44 cm.
also length of wire is equal to perimeter of square and circumference of circle.
circumference of circle = perimeter of square
2πr =. 44
2× 22/7 ×r = 44
r = (44×7)/(2×22)
r = 7 cm.
AREA OF CIRCLE = π r²
= (22/7)×7²
= (22/7)× (7×7)
= 22×7
= 154 cm²