2 years ago

Determine the unknown length. Round your answer to the nearest tenth, if necessary.

Mathematics

1 answer:

butalik [34]2 years ago

5 0

Answer:

Step-by-step explanation:

a^2+b^2=c^2

a^2+12^2=20^2

144+a^2=400

a^2=256

a=16

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