Question

2 circular ki trijya ka anupat 2:3 hai inke paridhiyo ka anupat kya hoga

Answer 1

brother paridhi matlab circumference(C.f. ) aur uska formula hota h,
paridhi/ c.f. = 2πr
c.f. ka anupat = 2πr/2πR
= r/R
= 2/3
= 2:3

Answer 2

The ratio of their circumference is 2:3.

Step-by-step explanation:

It is given that the ratio of radius of two circles is 2:3, then we need to find the ratio of their circumferences.

$\dfrac{r_1}{r_2}=\dfrac{2}{3}$

The circumference of a circle is

$C=2\pi r$

where, r is radius.

Circumference of first circle is

$C_1=2\pi r_1$

Circumference of second circle is

$C_2=2\pi r_2$

The ratio of their circumference is

$\dfrac{C_1}{C_2}=\dfrac{2\pi r_1}{2\pi r_2}=\dfrac{r_1}{r_2}=\dfrac{2}{3}$

Therefore, the ratio of their circumference is 2:3.

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