Question

the circumference of the chakra of national flag exceeds its diameter by 16.8 cm. find the radius of the chakra.​

Answer 1

Let the radius of the circle is r and diameter is d.
Diameter of the circle is given by:
d=2r

Circumference of the circle is given by:
2πr

As we already know that the Chakra of the National flag is in the form of a circle.
Now, from the conditions given in the question by using the above formulae we can write it as:
⇒2πr=d+16.8

Let us now substitute the value of d in terms of r in the above equation.
⇒2πr=2r+16.8

Now, on writing the r times on the left hand side we get,
⇒2πr−2r=16.8

Let us now take the common terms out.
⇒2r(π−1)=16.8

Now, on further simplification we get,
⇒2r(3.14−1)=16.8 [∵π=3.14]

⇒2r×2.14=16.8

⇒r×4.28=16.8

Let us now divide with 4.28 on both the sides then we get,
⇒r=16.84.28∴r=3.925
⇒r=
16.8
4.28
∴r=3.925

Hence, the radius of the Chakra is 3.925 cm.

Answer 2

Answer:

Step-by-step explanation:

hiiii how are you bde dino baad on ayi boards ki tyaari chl rhi hai lag rha hai