Question

The circumference of a circle is 12.56 cm. What is the area? Use 3.14 for PI

Answer 1

A=pi r 2 Half of 12.56 is 6.28
Now it’s is A=pi 6.28 2 (2means square) 6.28*6.28 is 39.44 or 39.4384 then I times that by pi which is 123.84 or 123.836576

Answer 2

Hola!

Circumference of circle is 12.56 cm
Means,

2 × π × r = 12.56

r = 12.56 × 3.14 × 2

r = 1.999 cm

According to Question,

Area of Circle:

π × r²

3.14 × 1.99 × 1.99

12.547 cm² = 12.56 cm² (approximately.)

Hence,
Area of Circle is 12.56 cm²

hope it helps!