Question

The circumference fo a circle is 75.36 cm then its radius is

Answer 1

Radius = 12 cm

Step-by-step explanation:

Given Data

Circumference of a circle = 75.36 cm

To find - the radius of the circle

• Circumference of a circle is defined as the product  of π and diameter of the circle.
• Also circumference is defined as the product of 2π and radius of the circle.
• Symbol for Circumference of the circle is 'C'.

Circumference of the circle = 2 π r (units)

Substitute the values in above formula, where π = 3.14

75.36 = 2 × 3.14 × r       (cm)

75.36 = 6.28 × r    (cm)

$r = \frac{75.36}{6.28}$     (cm)

r = 12 cm

Therefore the radius of the circle with circumference 75.36 cm is 12 cm

To Learn More ...

https://brainly.in/question/1816641

https://brainly.in/question/1235728

Answer 2

Answer:

Step-by-step explanation:

Circumference=75.36

Also circumference=2πr

So 75.36=2πr

75.36=2x22/7xr

75.36x7=44r

527.52/44=r

52752/44x100=r

13188/11x100=r

131.88/11=r

11.98=r

Hence radius is equal to 11.97cm