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Find the missing length. Please put the explanation of how you solved it.

Find the missing length. Please put the explanation of how you solved it.-example-1

1 Answer

9 votes

Answer:

21.5(to 3sf)

Explanation:

Following the Pythagoras Theorem,

a²+b²=c²

20²+8²=464

c²=464

c=√464

=21.5(to 3sf)

User Gacek
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