Question

find the area of circle whole diameter 6.8mm ​

Answer 1

Answer: 36.3

Step-by-step explanation:

Radius = 6.8/2= 3.4mm

area of circle = πr^{2}

      = π*3.4*3.4

      = 22/7*3.4*3.4

      = 36.3

       

Answer 2

Answer :-

• The area of circle is 36.2984mm².

Step-by-step explanation:

To Find :-

• The area of circle

Solution:

Given,

• Diameter of circle = 6.8mm

Therefore, radius of circle:

As we know that,

Radius of circle = Diameter ÷ 2,

=> Diameter ÷ 2

=> ( 6.8 ÷ 2 ) mm

=> 3.4mm

Now, The area of circle:

As we know that,

Area of circle = π(r)² sq. units,

=> Area = π(r)²

=> Area = 3.15 × ( 3.4 )²

=> Area = 3.14 × 3.4 × 3.4

=> Area = 3.14 × 11.56

=> Area = 36.2984

Therefore,

The area of circle is 36.2984mm².

Formula used :-

• Radius of circle = Diameter ÷ 2
• Area of circle = π(r)² sq. units.

Know more :-

Some more information related to Area :-

• Area of rectangle = Length × Breadth sq. units

• Area of Square = (side)² sq. units

• Area of circle = π(r)² sq. units

• Area of trapezium = 1/2 × ( sum of all parallel sides ) × distance between them.

• Area of triangle = √s(s-a)(s-b)(s-c) [ heron's formula ].