Question

what is the perimeter of circle with radius 3.5cm a) 22 cm b) 2.2 cm c)220 cm d)2.32cm​

Answer 1

Step-by-step explanation:

Understand question -

the question says that perimeter of a circle have different be called the circumference of the circle , if radius of the circle → 3.5 cm then what is the circumference ?

Solution ✅-

Formula of the circumference =

$\pi r2$

to find the circumference by using formula we need to know value of π , the value of π = 22/7 or in decimal 3.14 .

then circumference of the circle = 22/7 × 3.5 × 2 = 22/7 ×7 = 22cm

so, circumference of the circle → 22 cm