Question

1,2,3e 4
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Answer 1

teorema de pintagoras
 1.
x²=50²+80²
x²=2500+6400
x²=8900
x=√8900
x=94,33

2.
x²=5000²-3000²
x²=(5000-3000)(5000+3000)
x²=2000x8000
x=√16000000
x=4000

3.
x²=12²-8²
x²=144-64
x=√80
x=8,9

4.
senβ=x/10
1/2=x/10
2x=10
x=10/2
x=5