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Plz help and if u don't know then don't answer
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15 votes
Plz help and if u don't know then don't answer

Plz help and if u don't know then don't answer-example-1
User Joe Albahari
by
7.2k points

1 Answer

2 votes
We see a right triangle here.
Use the Pythagorean Theorem:
a^2+b^2=c^2
a & b=legs
c=hypotenuse
a^2+15^2=20^2
a^2+225=400
a^2=175
a=13.2287565553
a=13.2
The missing side is 13.2cm
User Mokarakaya
by
7.2k points
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