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Students in this video, let's discuss rectangles in great detail, but what is a rectangle?

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A rectangle is a program.

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So that's an important thing.

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It is a type of a program that means the opposite sides in a rectangle are equal and parallel.

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So these two sides are of the same length and these two sides are of the same length.

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And also, this side is parallel to the side and you will see that this side is parallel to this side.

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Now, what else is there about a rectangle?

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Every angle over here, every internal angle will be equal to 90 degrees in a rectangle.

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So this type of a shape is called a rectangle.

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Now, let's call in as the length and we as Debrett.

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Now, what would be the perimeter of this rectangle?

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It's just the length of the border, right.

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So that's in plus B plus L plus B, we will see that the perimeter is two times the length plus breadth.

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All right.

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So over here you have a perimeter.

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And see, the sides are given us two centimetre and six centimeter to what would be the perimeter.

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It would be to in the eight, which is equal to 16 centimeter.

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Now, how do you find the area of a rectangle?

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The area of a rectangle is equal to length and breadth.

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Why is that?

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So we have seen before that the area of a Parlo Graham is said into its height right over here.

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Also, you can see that because this angle is ninety degrees.

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This site itself is the height when you take L as the base to over here also you have basing the height

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that is length in the breadth that gives you the area of this rectangle.

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All right.

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So what's the area of this rectangle over here?

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That would be six in the two, which is equal to 12 centimetres square.

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All right.

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Now, let's do a very basic question to solidify what we have learned over here.

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A rectangular park is fifty five metres long and 40 metres wide at about one point five metres is constructed

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outside the park by the area of the port and the area of the park.

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So that's not a diagram.

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We know that this is the park and this outside is the part which is constructed around the park over

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here.

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It's given that the length of the park is fifty five metres and the breadth is 40 metres and the width

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of the path is one point five metres.

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Now we can directly find the area of the park, which is length in the bread that is fifty five to forty

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and that gives you two thousand two hundred metres square.

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Now let's find the area of the park around the park.

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All right, now, let me do these constrictions over here now, over here, you can see that this length

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over here will be one point five meter and this length over here will be one point five meters.

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So this area over here will be one point five into one point five.

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That gives me two point to five meters square right now.

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What about this area over here?

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This will be fifty five into one point five, right?

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This is also a rectangle.

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You can see the length is fifty five and Britta's is one point five.

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So this area over here is fifty five and one point five.

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That gives me eighty two point five meters square.

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All right.

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But what about this area over here?

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That's forty one point five and that is equal to 60 Meter Square right over here.

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Also, you have a rectangle and one side is 40 and the other side is one point five.

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Now, to find this area over here, all I need to do is I need to add these four corners.

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Right.

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So these areas are two point five.

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Meta two point two, five meter squares, that's four times to point to five plus two times 60.

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Right, because you have this over here at 60 and you have this over here a sixty two times 60 plus

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two times eighty two point five, because also you have eighty two point five metre square.

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And when you add these together you will get the answers to ninety four meter square.