Math, asked by cooler15, 11 months ago

In the following figure, AB || DC and AD = BC. Find the value of x.
D
20 cm
10 cm
10 cm
x cm​

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Answers

Answered by meerahzb2017
5

Answer:

It is a isoselous triangle so draw a line parallel to CB from D to the line AB ..You will get a isoselous triangle and a parallelogram ...Now EB is Parallel to DC therefore 20cm...now AD=DE=10cm..now by heron's formula find AE and find AB

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