Concise Mathematics I.C.S.E - Class IX>Chapter 20 - Area and Perimeter of Plane Figures>EXERCISE>Q 27

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For the trapezium given below; find its area.

Important Questions on Area and Perimeter of Plane Figures

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Concise Mathematics I.C.S.E - Class IX>Chapter 20 - Area and Perimeter of Plane Figures>EXERCISE>Q 27

For the trapezium given below ; find its area.

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Concise Mathematics I.C.S.E - Class IX>Chapter 20 - Area and Perimeter of Plane Figures>EXERCISE>Q 27

For the trapezium given below; find its area.

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Concise Mathematics I.C.S.E - Class IX>Chapter 20 - Area and Perimeter of Plane Figures>EXERCISE>Q 28

The perimeter of a rectangular board is

70

cm Taking its length as

x

cm, find its width in terms of

x

If the area of the rectangular board is

300 {cm}^{2}

. find its dimensions.

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Concise Mathematics I.C.S.E - Class IX>Chapter 20 - Area and Perimeter of Plane Figures>EXERCISE>Q 29

The area of a rectangle is $640 m^{2}$ . Taking its length as $x m$ ; find, in terms of $x$ , the width of the rectangle.

If the perimeter of the rectangle is $104 m$ ; find its dimensions.

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Concise Mathematics I.C.S.E - Class IX>Chapter 20 - Area and Perimeter of Plane Figures>EXERCISE>Q 30

The length of a rectangle is twice the side of a square and its width is $6 cm$ more than the side of the square. If the area of rectangle is three times the area of the square, find the dimensions of each.

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Concise Mathematics I.C.S.E - Class IX>Chapter 20 - Area and Perimeter of Plane Figures>EXERCISE>Q 31

A B C D

is a square with each side

12

cm .

P

is a point on

B C

such that area of

∆ A B P

: area of trapezium

A P C D = 1 : 5

. Find the length of

C P

.

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Concise Mathematics I.C.S.E - Class IX>Chapter 20 - Area and Perimeter of Plane Figures>EXERCISE>Q 32

A rectangular plot of land measures

45 m \times 30 m

. A boundary wall of height

2.4 m

is built all around the plot at a distance of

1 m

from the plot. Find the area of the inner surface of the boundary wall.

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Concise Mathematics I.C.S.E - Class IX>Chapter 20 - Area and Perimeter of Plane Figures>EXERCISE>Q 33

A wire when bent in the form of a square encloses an area

= 576 {cm}^{2}

. Find the largest area enclosed by the same wire when bent to form an equilateral triangle.