geometry rectangle


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Rectangle
A rectangle is a parallelogram with one of its angle a right angl..
Rectangle
A rectangle is a parallelogram having all angles equal. Its other properties are: (i) The diagonals are equal. (ii) Each angle is a right angle...
Area of a rectangle
The formula for the area of a rectanhle = A = Length x Breadth =l x..
Parallelograms Theorem 4
Theorem 4 - Recall that the diagonals of a parallelogram bisect each other. Since a rectangle is also a parallelogram, the diagonals of a rectangle also bisect each other. What is the additional property of the diagonals of a rectangle? Let us draw a rectangle..
Statement
The diagonals of a rectangle are equal in lengt..
Square
A square is a rectangle with a pair of its consecutive sides equal. Since square is a rectangle, each angle of a rectangle is a right angle and AB=DC, BC=CD. Thus AB=BC=CD=AD. Each of the four angles of a square is a right angle and each of the four sides is of the s..
Special Parallelograms
Special Parallelograms - Rectangles, rhombuses and squares belong to the set of parallelograms. Each of these may be defined as a parallelogram as follows: A rectangle is an equiangular parallelogram. A rhombus is an equilateral parallelogram. A square is an equilateral and equi..
Question 3
image Question: ABCD and EFGH are similar rectangles. What should be the measure of EF? Answer: EF = 2 x 2.5 = 5cm. Because GF = HE = 2 x BC = 2 x 1.8 = 3.6..
Theorem 2
The area of a parallelogram is equal to that of a rectangle of the same base and of the same altitude. ABCD is a parallelogram and ABEF is a rectangle. They have common base AB and same height AF (or BE) Corollary Parallelograms having equal bases and equal altitudes are equal i..
To prove:
Parallelogram ABCD is a rectangle..
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