Question

2(diameter+n)=2 pi r when n=4/7×diameter

Answer 1

Your answer is given below =》》》》》

The distance around the circular region is called its circumference. The ratio of circumference of any circle to its diameter is constant. This constant is denoted by π and is read as pie.

Circumference/Diameter = Pie

i.e., c/d = π or c = πd

We know that diameter is twice the radius, i.e., d = 2r

C = π × 2r

⇒ C = 2πr

Therefore approximate value of π = 22/7 or 3.14.

Answer 2

Step-by-step explanation:

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Concept used here:-

Mathematics

Question:-

(diameter+n)=2 pi r when n=4/7×diameter

Answer:-

Let 'd' be the diameter.

2(d+n)=2πr

Taking,

2(d+n) as circumference.

Circumference=2πr

We know that,.

π= 22÷7 (or) 3.14

Hope it will help you

@ Sweety Adihya