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Important Formulas: Mensuration | Mathematics (Maths) Class 6 PDF Download

Important Formulas

(1) The size of a line segment is its length.
(2) The sum of lengths of all sides of a plane figure or the length of its boundary is called the perimeter of the figure
(3)The measurement of the region enclosed by a closed plane figure is called the 'area' of the plane figure.
(4) A square centimetre is the area of the region formed by a square of side 1 cm.
(5) Perimeter of a Square= 4 × length of a side = 4a 

Area of Square= Side × Side =Side2=a2 

Important Formulas: Mensuration | Mathematics (Maths) Class 6

(6) Perimeter of a Rectangle= 2× [length ( l ) + width (w)] 

Area of a Rectangle= length ( l ) × breadth ( b) 

Important Formulas: Mensuration | Mathematics (Maths) Class 6

(7) Perimeter of a Triangle= Sum of lengths of all sides = a + b + c. 

Important Formulas: Mensuration | Mathematics (Maths) Class 6

Area of triangle = (1/2) × base × height = (1/2) × b × h 

Important Formulas: Mensuration | Mathematics (Maths) Class 6(8) Perimeter of an equilateral triangle = 3 × length of a side

(9) Perimeter of a Regular Pentagon= 5 × length of a side 

(10) Perimeter of a Regular Hexagon= 6 × length of a side 

(11) Perimeter of a Regular Octagon= 8 × length of a side 

Perime
length of one side\text{Perimeter} = 5 \times \text{length of one side}

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FAQs on Important Formulas: Mensuration - Mathematics (Maths) Class 6

1. What are the important formulas in mensuration for Class 6?
Ans. Some important formulas in mensuration for Class 6 include the formulas for finding the area and perimeter of various geometric shapes like squares, rectangles, triangles, and circles.
2. How can I calculate the area of a circle using mensuration formulas in Class 6?
Ans. The formula to calculate the area of a circle is A = πr^2, where A is the area and r is the radius of the circle. You can use this formula to find the area of a circle in Class 6 mensuration problems.
3. What is the formula for finding the perimeter of a rectangle in mensuration for Class 6?
Ans. The formula to find the perimeter of a rectangle is P = 2(l + b), where P is the perimeter, l is the length, and b is the breadth of the rectangle. This formula is important to know for Class 6 mensuration problems.
4. How do I calculate the area of a triangle using mensuration formulas in Class 6?
Ans. To calculate the area of a triangle, you can use the formula A = 1/2 × base × height. In Class 6 mensuration, this formula is useful for finding the area of different types of triangles.
5. Why is it important to know mensuration formulas in Class 6 mathematics?
Ans. Understanding mensuration formulas in Class 6 mathematics is important as it helps in solving problems related to area, perimeter, and volume of different geometric shapes. These formulas are foundational for higher level math concepts and real-world applications.
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