1) determine um segmento de medida √5.
2) verifiquem se o triângulo abc é retângulo. jus...
![Mathematics](/tpl/images/cats/mat.png)
Mathematics, 27.09.2019 05:00, CrownedQueen
1) determine um segmento de medida √5.
2) verifiquem se o triângulo abc é retângulo. justifiquem.
3) os lados de um triângulo medem (x-r), x e (x+r), com r> 0. utilizem o teorema de pitágoras para determinar as medidas dos lados em função r.
atribuam valores positivos para r (por exemplo, r=10, r=2, r=5,5 etc.) e verifiquem que teremos sempre lados de triângulos retângulos semelhantes ao triângulo de lados 3,4 e 5.
4) na figura, quadradinhos de lado igual a 1 cm formam quadrados sobre os lados de um triângulo retângulo.
a) qual a área do quadrado a?
b) qual a medida:
•do cateto menor?
•do cateto maior?
•da hipotenusa?
observações na imagem:
o triângulo abc é usado na questão 2, e os quadrados sobre o lado de um triângulo retângulo é usado na questão 4.
![answer](/tpl/images/cats/otvet.png)
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