MEDIUM
9th Assam Board
IMPORTANT
Earn 100

Diagonals AC and BD of a trapezium ABCD with ABDC intersect each other at O. Prove that arAOD=arBOC.

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Important Questions on Areas of Parallelograms and Triangles

MEDIUM
9th Assam Board
IMPORTANT

In the given figure, ABCDE is a pentagon. A line through B parallel to AC meets DC produced at F. Show that arACB=arACF.

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MEDIUM
9th Assam Board
IMPORTANT

In the given figure, ABCDE is a pentagon. A line through B parallel to AC meets DC produced at F. Show that
arAEDF=arABCDE.

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HARD
9th Assam Board
IMPORTANT
A villager Itwaari has a plot of land of the shape of a quadrilateral. The Gram Panchayat of the village decided to take over some portion of his plot from one of the corners to construct a Health Centre. Itwaari agrees to the above proposal with the condition that he should be given equal amount of land in lieu of his land adjoining his plot so as to form a triangular plot. Explain how this proposal will be implemented.
HARD
9th Assam Board
IMPORTANT

ABCD is a trapezium with ABDC. A line parallel to AC intersects AB at X and BC at Y. Prove that arADX=arACY.

MEDIUM
9th Assam Board
IMPORTANT

In the given figure, APBQCR. Prove that arAQC=arPBR.

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MEDIUM
9th Assam Board
IMPORTANT

Diagonals AC and BD of a quadrilateral ABCD intersect at O in such a way that arAOD=arBOC. Prove that ABCD is a trapezium.

HARD
9th Assam Board
IMPORTANT

In the given figure, arDRC=arDPC and arBDP=arARC. Show that both the quadrilaterals ABCD and DCPR are trapeziums.

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MEDIUM
9th Assam Board
IMPORTANT

Parallelogram ABCD and rectangle ABEF are on the same base AB and have equal areas. Show that the perimeter of the parallelogram is greater than that of the rectangle.