Question

find the area of the circle of radius 21cm
​

Answer 1

Answer:

1386 cm²

Step-by-step explanation:

Area of circle = πr²

= (22/7) × 21 × 21

= 22 × 3 × 21

= 1386 cm²

Answer 2

Question:

find the area of the circle of radius 21cm

Answer:

Area of circle = 1386 cm²

___________

Solution:

Radius = 21cm

Area of the circle = πr² sq units

$\frac{22}{7} × 21 × 21$

$= 22 × 3 × 21$

$= 66 × 21$

$= 1386 cm²$