Question

Find the radius and diameter both of the circle whose circumference is35
cm​

Answer 1

Given:-

• Circumference of circle = 35cm

To find:-

• radius and diameter

Solution:-

Circumference of circle = 2πr

35cm = 2 × 22/7 × r

r = 35 × 7 / 2 × 22

r = 245 / 44

r = 5.56cm

Therefore, radius is 5.56cm.

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As we know that, diameter is double of radius.

Diameter = 2(radius)

= 2(5.56)

= 11.12cm

Answer 2

Answer:

Given :-

• A circle whose circumference is 35 cm.

To Find :-

• What is the radius and the diameter of a circle.

Formula Used :-

★ Circumference = 2πr ★

✰ Diameter = 2 × radius ✰

Solution :-

First we have to find the radius,

Given :

• Circumference of a circle = 35 cm

According to the question by using the formula we get,

⇒ 2 × 22/7 × r = 35

⇒ r = 35 × 7/22 × 2

⇒ r = 245/44

➠ r = 5.56 cm

∴ The radius of the circle is 5.56 cm .

Now, we have to find the diameter,

Given :

• Radius = 5.56 cm

According to the question by using the formula we get,

↦ Diameter = 2 × 5.56

➦ Diameter = 11.12 cm

∴ The diameter of the circle is 11.12 cm .