Question

find upto two places of decimals , the area of a circle whose diameter is 2.3 cm. ​

Answer 1

Diameter=2.3 cm

Radius =2.3/2 cm

=Area=22/7 ×2.3/2 ×2.3/2

AFTER CALCULATING

ANS- 4.15

Answer 2

Answer:

area=pi r sq

2.3 diameter=1.15 radius

area=22/7 *1.15*1.15

=4.15 cm

=12.30 cm diameter

Step-by-step explanation: