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MathematicsClass 6CBSE

The length of rectangle is thrice its breadth and its perimeter is 48cm. Find length and breadth of rectangle.

Let the breadth of rectangle = blength of rectangle = 3bPerimeter of rectangle = 2 × (3b + b)48 = 2 × (3b + b)48/2=4b24 = 4b24/4=b⇒ 6 = b ⇒ breadth = 6cmlength = 3b = 3 × b = 18cm

MathematicsClass 6CBSE

Find the area of the rectangle whose side are:12 m and 21 m

Area of the rectangle = Length × Breadth = 12 m × 21 m = 252 sq m

MathematicsClass 6CBSE

Find the area of the rectangle whose side are:3 cm and 4 cm

Area of the rectangle = Length × Breadth = 3 × 4 cm = 12 sq cm

MathematicsClass 6CBSE

_____ is the sum of all sides.

Perimeter is the sum of all sides.

MathematicsClass 6CBSE

For fencing the plot, we need to calculate its _____.

For fencing the plot, we need to calculate its Perimeter.

MathematicsClass 6CBSE

The amount of surface enclosed by a figure is called its ____.

The amount of surface enclosed by a figure is called its area.

MathematicsClass 6CBSE

_____ is a rectangle whose all sides are equal.

Square is a rectangle whose all sides are equal.

MathematicsClass 6CBSE

A collection of numbers gathered to give some information is called?

Data is collection of numbers gathered to give some information.

MathematicsClass 6CBSE

A bar graph represents data in the form of pictures, object or parts of objects.

False. A pictograph represents data in the form of pictures, object or parts of objects.

MathematicsClass 6CBSE

In a bar graph, _______ can be drawn horizontally and vertically.

In a bar graph, bar can be drawn horizontally and vertically.

MathematicsClass 6CBSE

In a bar graph width of rectangle is always _________

In a bar graph width of rectangle is always equal.

MathematicsClass 6CBSE

Representation of data with the help of tally marks is called____

Representation of data with the help of tally marks is called frequency distribution table.

MathematicsClass 6CBSE

Write the following in decimals.5 hundreds 3 tens 8 ones 4 tent

5 Hundreds + 3 Tens + 8 Ones + 4 Tenths= 5 × 100 + 3 × 10 + 8 × 1 + 4 × 1/10= 500 + 30 + 8 + 410= 538 + 410 = 538.4

MathematicsClass 6CBSE

Express the following as cm using decimals: 30 mm

30 mm =30/10cm3 cm = 3.0 cm

MathematicsClass 6CBSE

Express 6/100 as decimal. 

6/100 = 0.061 mm = 1/10 cm

MathematicsClass 6CBSE

Arrange the following decimal numbers in descending order.8.51, 8.06, 9.10, 8.57

The given decimal numbers are like decimals. By checking the digits before decimal, we observe that 9.10 is largest of given numbers. Among the remaining numbers, by checking the tenths place, we observe that 8.06 is the least. Out of remaining numbers, by checking the hundredths place, we observe that 8.57 is bigger than 8.51. So, by arranging the given numbers from big to small, we have,⇒ 9.10, 8.57, 8.51, 8.06

MathematicsClass 6CBSE

Write all the natural numbers from 1 to 15. What fraction of them are prime numbers?

Natural numbers from 1 to 15 are 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 and 15 Prime numbers from 1 to 15 are 2, 3, 5, 7, 11, 13, i.e., 6 prime numbers.∴ Fraction of prime numbers = 6/15

MathematicsClass 6CBSE

In 3/7 , 3 is the part of whole.

3/4 means 3 parts out of 4 parts.So, colour 3 parts out of 4 parts given.

MathematicsClass 6CBSE

_____ boxes are required if fraction is 5/6.

30 boxes are required if fraction is 5/6.

MathematicsClass 6CBSE

If I make a bench of 20 small boxes, the fraction becomes _____.

If I make a bench of 20 small boxes, the fraction becomes 5/9.

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