Question

2. Find the circumference of a circle whose diameter is
(i) 35 cm, (ii) 4.9 m.​

Answer 1

Answer:

we know that

1. circumference of circle - 2pieR

then,2*22/7*35=2*22*5=220Cm

2.circumference of circle - 2pieR

then,2*22/7*49/10M=2*22*7/10=(22*7)/5=154/5=30.8M

Thanks!!

Answer 2

Answer:

Circumference of 1st circle =

Ciecumference of 2nd circle =

Step-by-step explanation:

i) Circumference = 2πr

                            = 2 × 22/7 × 35

                            = 44 × 5

                            = 220 sq.cm

ii) Circumference = 2πr

                             = 2×22/7 × 4.9

                             = 2 × 22/7 × 49/10

                             = 154/5

                             = 30.8 sq.m

I hope this will help u :)