# Area and Perimeter

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Last updated 5 years ago

Discipline:
Math
Subject:
Geometry
Grade:
9   Area and Perimeter

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Area:-The space or region occupied by a closed figure.The SI Unit of area is meter square. Different geometric shapes have different formulae for computing area.Perimeter:- The distance around a closed figure. It is the boundary distance of a figure.

Lets know the basics!

Introductory Video:-

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A parallelogram is a quadrilateral with two pairs of parallel sides. The opposite or facing sides of a parallelogram are of equal length and the opposite angles of a parallelogram are of equal measure.

Parallelogram

Area and Perimeter

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Let's take a Quiz!Ensure that you have gone through the Summary Video.Best of Luck! Click on the button

Circle

A round plane figure whose boundary consists of points equidistant from the center is a circle. The radius of a circle is a line from the centre of the circle to a point on the side.

Area and Perimeter

A trapezium is a 4-sided flat shape with straight sides that has a pair of opposite sides parallel. It is called an Isosceles trapezium when the sides that aren't parallel are equal in length.

Area and Perimeter

Trapezium

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Question 1A ground in the shape of a parallelogram, with base 12 m and height 10 m and another side of 9m, has to be levelled and fenced. Find the cost of levelling, if 1 sq. m is 0.5\$. Also find the length of barbed wire fence.

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Question 2Rahul has to tie a ribbon around the rim of a circular gift box. He measures the diameter to be 14 cm. Find the length of ribbon required to tie around 3 times with 5 cm excess.

Now that you have finished learning this Glog, watch a quick, interactive and fun Summary Video explaining the key concepts.

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