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How many sides do rectangles have?

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Important Questions on Understanding Elementary Shapes

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Mathematics>Geometry>Understanding Elementary Shapes>Types of Quadrilaterals and Its Properties
Let a=BC, b=CA, c=AB be the side lengths of a triangle ABC, and m be the length of the median through A. If a=8, b-c=2, m=6, then the nearest integer to b is
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Mathematics>Geometry>Understanding Elementary Shapes>Types of Quadrilaterals and Its Properties
The perimeter of a rhombus is 20 cm. The length of one of its diagonals is 6 cm. What is the length of the other diagonal?
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Mathematics>Geometry>Understanding Elementary Shapes>Types of Quadrilaterals and Its Properties
The area of an equilateral triangle is 493 cm2. Find its side (in cm.).
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Mathematics>Geometry>Understanding Elementary Shapes>Types of Quadrilaterals and Its Properties
In a circle with centre O, AB is the diameter and CD is a chord such that ABCD is a trapezium. If ∠BAC=40°, then ∠CAD is equal to:
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Mathematics>Geometry>Understanding Elementary Shapes>Types of Quadrilaterals and Its Properties

The perimeter of a rectangle is 42 cm. If its diagonal is 15 cm long, find the breadth of the rectangle. 

(A) 8 cm. 

(B) 10 cm. 

(C) 9 cm. 

(D) 7 cm. 

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Mathematics>Geometry>Understanding Elementary Shapes>Types of Quadrilaterals and Its Properties
△XYZ is right angled at Y. If m∠X=60o, then find the value of (cotZ+2).
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Mathematics>Geometry>Understanding Elementary Shapes>Types of Quadrilaterals and Its Properties

Land is acquired for road widening from a square ground, as shown in the figure. The width of the acquired land is 2 m. Area of the remaining ground is 440 m2. What is the shape of the remaining ground?

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Mathematics>Geometry>Understanding Elementary Shapes>Types of Quadrilaterals and Its Properties
The length of one side and the diagonal of a rectangle are 10 cm and 26 cm respectively. Find the length of the other side (in cm).
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Mathematics>Geometry>Understanding Elementary Shapes>Types of Quadrilaterals and Its Properties

X, Y and Z are the midpoints of the sides of ∆PQR. If the perimeter of ∆XYZ is 32 units, find the perimeter of ∆PQR.

 (A) 128 units 

(B) 64 units 

(C) 96 units 

(D) 160 units 

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Mathematics>Geometry>Understanding Elementary Shapes>Types of Quadrilaterals and Its Properties
The diagonal of a rhombus is 8 m and 6 m respectively. Find its area.
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Mathematics>Geometry>Understanding Elementary Shapes>Types of Quadrilaterals and Its Properties
What is the area (in cm2) of the rhombus having side as 20 cm and one of the diagonal as 24 cm?
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Mathematics>Geometry>Understanding Elementary Shapes>Types of Quadrilaterals and Its Properties
If the length of a rectangle is decreased by 5 metres and breadth increased by 3 metres, its area decreases by 9 m2. If its length is increased by 3 m and breadth by 2 m, its area increases by 67m2. What is the length of the rectangle ?
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Mathematics>Geometry>Understanding Elementary Shapes>Types of Quadrilaterals and Its Properties
The perimeter of a rhombus is 52 m, while its longer diagonal has a length of 24 m. The length of the other diagonal is?
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Mathematics>Geometry>Understanding Elementary Shapes>Types of Quadrilaterals and Its Properties
A man walked diagonally across a square lot. Approximately, what was the percent saved by not walking along the edges?
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Mathematics>Geometry>Understanding Elementary Shapes>Types of Quadrilaterals and Its Properties
The ratio of the corresponding sides of two similar triangles is 3:4. The ratio of their areas?
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Mathematics>Geometry>Understanding Elementary Shapes>Types of Quadrilaterals and Its Properties
The two diagonals of a quadrilateral are 5 cm and 4 cm. Can it be a rectangle? Give reasons.
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Mathematics>Geometry>Understanding Elementary Shapes>Types of Quadrilaterals and Its Properties
The diagonals of a rhombus bisect each other at _________ angles.
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Mathematics>Geometry>Understanding Elementary Shapes>Types of Quadrilaterals and Its Properties
Draw a rough figure of a quadrilateral that is not a parallelogram but has exactly two opposite angles of equal measures.
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Mathematics>Geometry>Understanding Elementary Shapes>Types of Quadrilaterals and Its Properties

A quadrilateral in which diagonals are not equal but bisect each other at 90° is called _____.

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Mathematics>Geometry>Understanding Elementary Shapes>Types of Quadrilaterals and Its Properties

A _____ is a kind of parallelogram.