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If the length of a rectangle is 6 centimeters and the perimeter is 16 centimeters what is the area?
Stinkola
So a rectangle has 4 sides. The two long sides and the two shorter sides in an rectangle are the same length.
Knowing this we know that one of the sides is 6cm long, that means the side opposite it must also be that same length.
The perimiter is the same as the distance it takes to walk all around the shape, we already know that the perimiter is 16cm.
And we already know that two of those lines that you'd have to walk are 6cm so we know that to walk two sides of the rectangle that's 12cm.
That means that the other two sides must take 4cm to walk to make the perimiter add up to 16cm.
Now remember that we said that a rectangle has 2 long sides and 2 short sides that are equal in length? well we know the two long sides are equal now at 6 cm each, and we know that the 2 short sides add up to 4cm...and they have to be the same size, so each short side msut be 2cm long each.
Now that we know all the sides length, we multiply length x bredth to get aera
that's 6cm x 2cm = 12cm2
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