Question

3. given the area find the radius of each circle (take pie =3.14)(a)A=113.04mm​

Answer 1

Question

Given the area, find the radius of each circle (take pie = 3.14).

[a] Area of circle = 113.04mm

Solution

Given that, the area of circle is 113.04mm and we've been asked to find out the value of radius.

We know that, the area of a circle is pi times the radius squared.

$Area\;of\;circle = \pi r^2$

By substituting the value of radius in the formula, we get the following results:

$\implies 113.04 = 3.14 \times r^2$

$\implies r^2 = \cancel{\dfrac{113.04}{3.14}}$

$\implies r^2 = 36$

$\implies r = \sqrt{36}$

$\implies \boxed{r = 6}$

Hence, the radius of circle is 6mm.

Answer 2

Answer:

6

Step-by-step explanation:

$3.14 \times x^{2} = 113.04$

${x}^{2} = 113.04 \div 3.14$

${x}^{2} = 36$

$x = 6$