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8th CBSE
IMPORTANT
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If diagonals of a quadrilateral bisect each other, it must be a parallelogram.

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Important Questions on Understanding Quadrilaterals and Practical Geometry

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8th CBSE
IMPORTANT
A quadrilateral can be constructed uniquely if three angles and any two sides are given.
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8th CBSE
IMPORTANT
A parallelogram can be constructed uniquely if both diagonals and the angle between them is given.
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8th CBSE
IMPORTANT
A rhombus can be constructed uniquely if both diagonals are given.
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8th CBSE
IMPORTANT
The diagonals of a rhombus are 8 cm and 15 cm. Find its side in cm in decimal.
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8th CBSE
IMPORTANT
Two adjacent angles of a parallelogram are in the ratio 1:3. Find its angles.
 
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8th CBSE
IMPORTANT
Of the four quadrilaterals- square, rectangle, rhombus and trapezium - one is somewhat different from the others because of its design. Find it and give justification
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8th CBSE
IMPORTANT
In a rectangle ABCD, AB=25 cm and BC=15. If the ratio, in which the bisector of C divide AB is 2:k, find k.
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8th CBSE
IMPORTANT

PQRS is a rectangle. The perpendicular ST from S on PR divides S in the ratio 2:3. If PST=k°, find k.