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Question

In given figure, CAB=900 and ADBC. If AC=75 cm. AB=1 m and BD=1.25 m, find AD
1008685_da8975c9463241fb9616cef615cb7b25.png

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Solution

We have,

AB=1 m=100 cm, AC=75 cm and BD=125 cm.

In BAC and BDA, we have

BAC=BDA [Each equal to 90]

and, B =B

So, by AA-criterion of similarity, we have

BACBDA

BABD=ACAD

100125=75AD

AD=125×75100cm=93.75cm

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