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Question

Construct a quadrilateral ABCD, when AB=6.3 cm,BC=CD=4.2 cm and ABC=BCD=90.
Find the length of side AD and mBAD.

A
AD=3.5 cm, 70
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B
AD=4.7 cm, 65
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C
AD=4.5 cm, 70
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D
AD=3.5 cm, 65
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Solution

The correct option is B AD=4.7 cm, 65
Step 1: Draw base BC of length 4.2 cm.
Step 2: Draw lines of at an angle of 90 from points B and C.
Step 3: Make an arc of radius 6.3 cm on the perpendicular line from B and mark the point as A.
Step 4: Make an arc of radius 4.2 cm on the perpendicular line from C and mark the point as D.
Step 5: Join AD

ABCD is the required quadrilateral.

Upon measuring AD, we get the length as 4.7 cm approx. and mBAD=65

595921_526543_ans.png

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