Question

what is the circumference of a circle of diameter 10cm (take pie= 3.14)

Answer 1

HEYY hope this helps.

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Answer 2

$\small{\textsf{\textbf{\underline{\underline{∴ The circumference of the circle = 31.4 cm\::}}}}}$

Step-by-step explanation:

Given that:

• A circle having diameter 10 cm.
• We have to take the value of π = 3.14

To Find:

• The circumferences of a circle.

formulas.used...

• Diameter = 2 × Radius
• Circumference of a circle = 2π × Radius

Concept:

• First we have to find the radius of the circle after that we will able to find its circumference by using the formula.

Finding the radius of the circle:

We know that.

Diameter = 2 × Radius

⟶ 10 = 2 × Radius

⟶ Radius = 10/2

⟶ Radius = 5

∴ The radius of the circle = 5 cm

Finding the circumference of the circle:

We know that.

Circumference of a circle = 2π × Radius

⟶ Circumference = 2 × 3.14 × 5

⟶ Circumference = 31.4

$\small{\textsf{\textbf{\underline{\underline{∴ The circumference of the circle = 31.4 cm\::}}}}}$

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• Perimeter of rectangle =2(length+breadth)

• Perimeter of square = 4 × side

• Perimeter of parallelogram = 2(Base+height)

• Perimeter of triangle = sum of all sides.