francesramos francesramos
  • 16-01-2019
  • Mathematics
contestada

in a 45° - 45° - 90° triangle , what is the measure of one of its legs if the hypotenuse is 32 cm?

Respuesta :

jimrgrant1 jimrgrant1
  • 16-01-2019

Answer:

16[tex]\sqrt{2}[/tex]

Step-by-step explanation:

note that in a 45° - 45° - 90° triangle the legs are equal in length, since triangle is a right isosceles

let x be the length of the leg

using Pythagoras' identity on the triangle, then

x² + x² = 32²

2x² = 1024 ( divide both sides by 2 )

x² = 512 ( take the square root of both sides )

x = [tex]\sqrt{512}[/tex] = 16[tex]\sqrt{2}[/tex]

the legs have length 16[tex]\sqrt{2}[/tex]


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