Question

find the area of a circle of radius is 7 ​

Answer 1

Given :

⬤ Radius of Circle is 7 unit .

To Find :

⬤ Area of Circle .

Formula Used :

$\bf[\:{Area\:of\:Circle=\pi{r}^{2}}\:]$

• r = radius

Solution :

• Radius = 7 unit .

According to the Formula :-

πr²

22/7 × 7 × 7

22 × 7

154

Therefore , The Area of the Circle is 154 unit² .

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Related Formulas :

• Circumference of Circle = 2πr
• Area of Circle = πr²
• Curved Surface Area of Cone = πrl
• Total Surface Area of Cone = πr (r + l)
• Volume of Cone = ⅓πr²h
• Curved surface area of Cylinder = 2πrh
• TotalSurface Area of Cylinder = 2πr (r + h)
• Volume of Cylinder = πr²h

In Above Formulas :

• r = radius
• l = slant height
• π = 3.14 or 22/7
• h = height

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Answer 2

ᴀʀᴇᴀ ᴏғ ᴀ ᴄɪʀᴄʟᴇ = πr²

ᴡʜᴇʀᴇ ,ʀ ɪs ᴛʜᴇ ʀᴀᴅɪᴜs ᴏғ ᴄɪʀᴄʟᴇ

sɪɴᴄᴇ ʀ = 7

sᴏ,ᴀʀᴇᴀ ᴏғ ᴛʜᴇ ɢɪᴠᴇɴ ᴄɪʀᴄʟᴇ = π×7×7=49π

22/7 × 7 × 7

22 × 7

154

Therefore , The Area of the Circle is 154 unit² .