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Question

XYZ is an equilateral triangle and PQRS is a square. The figure has been cut and re-arranged in the form of a trapezium.

What is the length of the path ADCB in the trapezium ABEF?


A

12 cm

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B

17 cm

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C

16 cm

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D

14 cm

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Solution

The correct option is C

16 cm


In the trapezium ABEF,

AD = 4 cm, since this is the equal side of Orange triangle which is equal to 4 cm.

DB = 8 cm, since this is the hypotenuse of Blue triangle which is equal to hypotenuse of Yellow triangle, as it is given as equilateral triangle all the sides must be equal.

BC = 4 cm, since BC and AD are equal in trapezium .

Length of the path ADBC = AD + DB + BC
= 4 + 8 + 4
= 16 cm


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