jazroegner jazroegner
  • 23-02-2021
  • Mathematics
contestada

Can someone please help me on this question and show the work if you can?

Can someone please help me on this question and show the work if you can class=

Respuesta :

Heavendragon
Heavendragon Heavendragon
  • 23-02-2021

Answer:

it is a 60 30 90 triangle so basically 2y is = x

21² + y² = x²

441 + y² = x²

y = x/2 (2y = x)

441 + x²/4 = x²

4x² = 1764 + x²

3x² = 1764

x = exact is 24.248711306 simplied square root would just be 14√3

2y = 14√3

y = 7√3

exact wouldd be 12.124355653

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