MEDIUM
9th Chhattisgarh Board
IMPORTANT
Earn 100

In the adjacent figure, AB and DC are two parallel lines which are intersected by transversal l at points P and Rrespectively. Prove that the bisectors of the interior angles make a rectangle.

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Important Questions on Quadrilaterals

EASY
9th Chhattisgarh Board
IMPORTANT

ABC is an isosceles triangle in which AB=AC, AD bisects the exterior angle PAC and CDBA. Prove that DAC=BCA

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MEDIUM
9th Chhattisgarh Board
IMPORTANT

ABC is an isosceles triangle in which AB=AC, AD bisects the exterior angle PAC and CDBA. Prove that quadrilateral ABCD is a parallelogram.

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MEDIUM
9th Chhattisgarh Board
IMPORTANT

ABCD is a parallelogram and BD is one of its diagonals. AP and CQ are perpendiculars on BD from the vertices A and C respectively. Prove that APBCQD

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MEDIUM
9th Chhattisgarh Board
IMPORTANT

ABCD is a parallelogram and BD is one of its diagonals. AP and CQ are perpendiculars on BD from the vertices A and C respectively. Prove that AP=CQ.

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MEDIUM
9th Chhattisgarh Board
IMPORTANT

ABCD is a rectangle in which diagonal AC bisects both the angles A and C. Then prove that ABCD is a square.

MEDIUM
9th Chhattisgarh Board
IMPORTANT

ABCD is a rectangle in which diagonal AC bisects both the angles A and C. Then prove that diagonal BD bisects both angles B and D.

MEDIUM
9th Chhattisgarh Board
IMPORTANT

ABC and DEF are such that AB and BC are equal and parallel to DE and EF respectively. Prove that AC and DF are equal and parallel.

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EASY
9th Chhattisgarh Board
IMPORTANT

ABCD is a trapezium where ABDC . E is the midpoint of AD. A line drawn from E, parallel to AB, meets BC at point F. Prove that F is the mid point of BC.

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