Question

if the radius of a circle is 5 cm, what will its diameter be ?

Answer 1

Answer:

The diameter of the circle is 10cm.

Step-by-step explanation:

Given that,

The radius of the circle is r=5cm.

And we are required to find the diameter of the circle.

We know that,

The diameter of a circle is twice its radius.

Hence it is mathematically written as

$d = 2r$

Substituting the given radius in above relation we get,

$d = 2 \times 5 = 10cm$

Therefore,

The diameter of the circle is 10cm.

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Answer 2

Answer:

10 cm is the diameter of the circle.

Step-by-step explanation:

Explanation:

Given that, the radius of a circle = 5cm.

• Circle - All points in a plane that are at a specific distance from a specific point, the center, form a circle. In other words, it is the curve that a moving point in a plane draws to keep its distance from a specific point constant.

• Radius of a circle - The radius of a circle is the separation between any two points on its circumference. R or r is typically used to indicate it.
• Relationship between radius and diameter :

The radius of circle = $\frac{Diameter \ of \ circle }{2}$

⇒ 5 = $\frac{d}{2}$

⇒ diameter = 5 × 2 = 10cm

Final answer:

Hence, 10 cm is the diameter of the circle.

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