Question

In the rectangle given below, the indicated triangle has an area of 7 cm sq.Find the area of the rectangle if the thick dots in the diagrammidpoints of the corresponding sides.(A) 14 cm2(B) 56 cm2(C) 42 cm2(D) 28 cm2​

Answer 1

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Answer 2

Step-by-step explanation:

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Maths

Mensuration

Area of General Quadrilateral

In the given figure, if are...

MATHS

In the given figure, if area of △ADE is 60cm

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; state, giving reason, the area of □ABCF

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ANSWER

Area of △ADE=60

⇒

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1

DE×AF=60

⇒DE×AF=120

In parallelogram ABED.

AB=DE

The diagonal bisects the parallelogram into two equal triangles.

Area of rectangle ABCF=AB×AF

=DE×AF

=120 cm

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