pls help me with detailed steps to get the answer,tysm ! :)

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secondary 4 | E Maths
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secondary 4 E Maths Singapore

pls help me with detailed steps to get the answer,tysm ! :)

Date Posted: 2 years ago

done {{ upvoteCount }} Upvotes

clear {{ downvoteCount * -1 }} Downvotes

a) use pythagoras theorem

Date Posted: 2 years ago