Question

ಒಂದು ವೃತ್ತದ ತ್ರಿಜ್ಯ 10cm ಆದರೆ, ಅದರ ವಿಸ್ತೀರ್ಣ ಮತ್ತು ಪರಿಧಿಯ ಉದ್ದವನ್ನು ಕಂಡುಹಿಡಿಯಿರಿ​

Answer 1

Given:

The radius of a circle is 10 cm

To find:

Its area and the length of the perimeter

Solution:

Finding the area of the circle:

We know,

$\boxed{\bold{Area\:of \:a \:circle = \pi r^2 }}$

∴ The area of the given circle = $\frac{22}{7} \times 10^2 = \frac{22}{7} \times 100 = 314.28\:cm^2$

Thus, the area of the given circle is → 314.28 cm².

Finding the length of the perimeter of the circle:

We know,

$\boxed{\bold{Circumference\:of \:a \:circle = 2\pi r }}$

∴ The length of the perimeter of the given circle is,

= Circumference of a circle

= $2 \times \frac{22}{7} \times 10$

= $\bold{62.85\:cm^2}$

Thus, the length of the perimeter of the given circle is → 62.85 cm².

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Answer 2

Answer:

ಒಂದು ವೃತ್ತದ ತ್ರಿಜ್ಯ 10cm ಆದರೆ, ಅದರ ವಿಸ್ತೀರ್ಣ ಮತ್ತು ಪರಿಧಿಯ ಉದ್ದವನ್ನು ಕಂಡುಹಿಡಿಯಿರಿ