Question

Priyanka took a wire and bent it to form a circle of radius 14 cm. Then she bent it into a
rectangle with one side 24 cm long. What is the length of the wire? Which figure encloses more area,
the circle or the rectangle?

Answer 1

Answer:

circumference of circle=2πr

if r=14cm

2×22/7 ×14

=88cm

so, length of wire= 88cm.

so, perimeter of rectangle=circumference of circle

perimeter of rectangle=88cm

one side is 24cm

second side=?

perimeter of rectangle= 2(l+b)

88=2(24+?)

88/2=24+?

44-24=?

second side= 20cm

area of circle=πr2

22/7 ×14×14=616cm2

area of rectangle=l×b

=20×24=480cm2

circle area is bigger.

Answer 2

Answer:

radius = 14

now taking ,

area of cicle=

22/7×14×14

22/7×196=216

now , a rectangle length is24 so,

area of rectangle =l×b

area of rectangle = area of circle

24×b=216

b=9

I hope that I help you