Question

what is the circumference of a circle with radius 4 cm .pls explain the equation​

Answer 1

Answer:

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Step-by-step explanation:

circumference of circle(c) = ?

radius(r) = 4cm

we know,

circumference of circle(c) = 2лr

                                           = 2×22/7×4

                                            = 176÷7

                                             = 25.14cm

Therefore, circumference of circle(c) = 25.14cm

Answer 2

Answer:

Given,

Radius=4 cm

The equation to find out the circumference of a circle is 2πr.

So, here is the solution⤵⤵

$circumference = 2 \times \pi\times r \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 2 \times \frac{22}{7} \times 4 \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \ \: \: = \frac{44}{7} \times 4 \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 25.13cm$

HOPE IT HELPS...