Question

construct ∆ABC is which AB =6cm ∆ A=90 and ∆B the s 45
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Answer 1

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△ ABC is a right angled triangle.

By Pythagoras theorem,

       AC2=BC2+AB2

=>AC2=62+82

=>AC2=36+64

=>AC2=100

=>AC=√100

=>AC=10cm.