Question

radhus.
4. The area of a circle is 346.5 cm^2 Find is radius​

Answer 1

Step-by-step explanation:

22/7 × r^2 = 346.5

r^2 = 346.5 × 7 /22

r^2 = 2425.5/22

r^2 = 110.25

r = √110.25

Answer 2

Correct Question :

The area of a circle is 346.5 cm² . Find its Radius .

Given :

⬤ Area of Circle is 346.5 cm² .

To Find :

⬤ Radius of Circle .

Formula Used :

$\bf[\:{Area \: of \: Circle = \pi{r}^{2}}\:]$

Solution :

According to the Formula :-

346.5 = πr²

346.5 = 22/7 × r²

346.5 × 7 = 22 × r²

2425.5 = 22r²

2425.5/22 = r²

110.25 = r²

√110.25 = r

10.5 = r

Therefore , Radius of Circle is 10.5 cm .

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Related Formulas :

• Circumference of Circle = 2πr
• Area of Circle = πr²
• Curved Surface Area of Cone = πrl
• Total Surface Area of Cone = πr (r + l)
• Volume of Cone = ⅓πr²h

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