Respostas

  • Usuário do Brainly
2014-08-05T17:24:21-03:00
Pitagóras

a²=b²+c²
a)
x²=7²+3²
x²=49+9
x²=58
x=√58

b)
12²=5²+x²
144=25+x²
x²=144-25
x²=119
x=√119

c)
18²=10²+x²
324=100+x²
x²=324-100
x²=224
x=4√14

d)

8²=x²+9²
64=x²+81
x²=81-64
x²=17
x=√17

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