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The sum of adjacent angles of a parallelogram is

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Important Questions on Understanding Quadrilaterals and Practical Geometry

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8th CBSE
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NCERT Exemplar Mathematics - Class 8>Chapter 5 - Understanding Quadrilaterals and Practical Geometry>Exercise>Q 34
The angle between the two altitudes of a parallelogram through the same vertex of an obtuse angle of the parallelogram is 30°.The measure of the obtuse angle is
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8th CBSE
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NCERT Exemplar Mathematics - Class 8>Chapter 5 - Understanding Quadrilaterals and Practical Geometry>Exercise>Q 35

In the given figure, ABCD and BDCE are parallelograms with common bases DC. If BC⊥BD, then ∠BEC=

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8th CBSE
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NCERT Exemplar Mathematics - Class 8>Chapter 5 - Understanding Quadrilaterals and Practical Geometry>Exercise>Q 36
Length of one of the diagonals of a rectangle whose sides are 10 cm and 24 cm is
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8th CBSE
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NCERT Exemplar Mathematics - Class 8>Chapter 5 - Understanding Quadrilaterals and Practical Geometry>Exercise>Q 37
If the adjacent angles of a parallelogram are equal, then the parallelogram is a
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8th CBSE
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NCERT Exemplar Mathematics - Class 8>Chapter 5 - Understanding Quadrilaterals and Practical Geometry>Exercise>Q 38
Which of the following can be four interior angles of a quadrilateral?
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8th CBSE
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NCERT Exemplar Mathematics - Class 8>Chapter 5 - Understanding Quadrilaterals and Practical Geometry>Exercise>Q 39
The sum of angles of a concave quadrilateral is
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8th CBSE
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NCERT Exemplar Mathematics - Class 8>Chapter 5 - Understanding Quadrilaterals and Practical Geometry>Exercise>Q 40
Which of the following can never be the measure of exterior angle of a regular polygon?
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NCERT Exemplar Mathematics - Class 8>Chapter 5 - Understanding Quadrilaterals and Practical Geometry>Exercise>Q 41

In the figure, BEST is a rhombus, Then the value of y-x is

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