Question

a wire in the shape of a rectangle of length 18 cm and width 15 cm is reshaped and bent in the form of a circle.
find the radius and the area of a circle ​

Answer 1

The wire is in the shape of rectangle

length = 18 cm

breadth = 15 cm

now the wire is bent into a circle

so

perimeter of rectangle = circumference of the circle

2(l+b) = 2πr

2(18 +15) = 2πr

2×33 = 2πr

66 = 2πr

66 × 7/ 2×22 = r

33 × 7/22 =r

21/2 = r

10.5 = r

so the radius of the circle is 10.5 cm

hope this answer helpful u

Answer 2

Answer:

10.5cm and

Step-by-step explanation:The wire is in the shape of rectangle

length = 18 cm

breadth = 15 cm

now the wire is bent into a circle

so,

perimeter of rectangle = circumference of the circle

2(l+b) = 2πr

2(18 +15) = 2πr

2×33 = 2πr

66 = 2πr

66 × 7/ 2×22 = r

33 × 7/22 =r

21/2 = r

10.5 = r

so the radius of the circle is 10.5 cm