Question

Find the circumference of the circle of diameter 70 cm
​

Answer 1

Answer:

✬Formula used:

Circumference of the circle=2πr

Radius=Diameter/2

✬Solution:

$⇢ʀᴀᴅɪᴜs = \frac{70}{2}$

$⇢ʀᴀᴅɪᴜs = 35cm$

Now,

$⇢Cɪʀᴄᴜᴍғᴇʀᴇɴᴄᴇ = 2\pi r$

$⇢Cɪʀᴄᴜᴍғᴇʀᴇɴᴄᴇ = 2 \times \frac{22}{7} \times 35$

$⇢Cɪʀᴄᴜᴍғᴇʀᴇɴᴄᴇ = 220cm$

Therefore, The circumference of the circle is 220cm.

Answer 2

Answer:

r=35cm

c=220cm

Step-by-step explanation:

radius(r)=70/2

radius (r)=35cm

circumference,

c=2×22/7×35

circumference of the =220cm

circle