Question

find the circumference of the circle if diameter is = 1.4 mm

Answer 1

Answer:

If the diameter of the circle = 1.4 mm, then its circumference is 4.4 mm

Step-by-step explanation:

Given the diameter of the circle = 1.4mm

Circumference $=2\pi r$

Given 2r=diameter=1.4mm

So $2\pi r=1.4*\frac{22}{7}\\ \\ = 0.2*22\\\\ =4.4mm$

So 4.4mm is the circumference of the given circle.

Answer 2

Question:-

Find the circumference of the circle. If diameter is 1.4mm.

Given:-

• Diameter = 1.4mm.

To Find:-

• Circumference of the circle.

Solution:-

$Circumference \: of \: a \: circle = 2\pi r.$

$⇒Diameter = 1.4mm.$

$⇒r = \frac{d}{2} = \frac{1.4}{2}$

$⇒ c = 2 \times \frac{22}{7} \times \frac{1.4}{2}$

$⇒c = 4.4mm.$

Answer:-

$\red{ \therefore {The\: circumference = 4.4mm.}}$

Hope you have satisfied. ⚘