Page 18 - Mathematics Teaching Material Two Dimensional Figure

Mathematics Teaching Material Two Dimensional Figure

6. Rectangle

What is a rectangle ?

Rectangle is a flat shape that has sides opposite sides that are the

same length, and have four right angle point.

Take a look at the picture on the side.
The rectangle beside is named square ABCD

because the vertices are A, B, C and D. While the

sides are AB, BC, CD and DA. Length of side AB
= length of side DC, length of side AD=length of

side BC.

From the picture above we can conclude the properties of a parallelogram :

1. Has 4 sides

2. Opposite sides are parallel and the same length

3. The diagonal bisects the length
4. All four angles are the same

5. Has 2 fold symmetry

6. Has 2 rotational symmetries

Area of a rectangle = p x l

Around = 2 x (p + l)

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