sofia3004
sofia3004 sofia3004
  • 26-02-2021
  • Mathematics
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help for all, will mark brainliest!!!!! :)

help for all will mark brainliest class=

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shallen
shallen shallen
  • 26-02-2021

Answer:

Number 4: Using Pythagoras Theorem,

[tex]\sqrt{30^2+40^2} =50[/tex]

Number 5:

[tex]\sqrt{41^2-40^2}=9[/tex]

3:

[tex]\sqrt{11^2+60^2} =61[/tex] It is a right triangle

4:

[tex]\sqrt{9^2+37^2} =38.09[/tex] Not a right triangle

For the last one:

[tex]\sqrt{(\sqrt{20^2+6^2})^2+6^2} =2\sqrt{118}[/tex]

Rounded down (because the answer needs to be a whole number) is 21

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