A wire when bent in the form of square, encloses an area of 146.41cm^2. If this wire is straightened and then bent to form a circle, what will be the area of the circle so formed. Please answer quickly
Answers
Answered by
105
Area of square=146.41 cm^2
side^2=146.41 cm^2
side =12.1 cm
Total length of wire used=Perimeter of square
=4 × 12.1
=48.4 cm
Circumference of circle =length of wire
2πr=48.4
r = 48.4×7/2×22
r = 7.7 cm
Area of Circle = πr^2
= 22×7.7×7.7/7
=186.34 cm^2
side^2=146.41 cm^2
side =12.1 cm
Total length of wire used=Perimeter of square
=4 × 12.1
=48.4 cm
Circumference of circle =length of wire
2πr=48.4
r = 48.4×7/2×22
r = 7.7 cm
Area of Circle = πr^2
= 22×7.7×7.7/7
=186.34 cm^2
Answered by
24
Answer:
Step-by-step explanation:
Area of square=146.41 cm^2
side^2=146.41 cm^2
side =12.1 cm
Total length of wire used=Perimeter of square
=4 × 12.1
=48.4 cm
Circumference of circle =length of wire
2πr=48.4
r = 48.4×7/2×22
r = 7.7 cm
Area of Circle = πr^2
= 22×7.7×7.7/7
=186.34 cm^2
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