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Ede4ka [16]
2 years ago
13

Find the value of x

Mathematics
1 answer:
riadik2000 [5.3K]2 years ago
6 0

Answer:

4√5

Step-by-step explanation:

Use Pythagorean theorem

a^2=21^2-19^2

a^2=441-19^2

a^2=441-361

a^2=80

a= √80

simplify

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