Answer :

rustydusty2873

Answer:

20

Step-by-step explanation:

use the cos or sin function to solve

nobleswift

Step-by-step explanation:

using 30°

we use cos

  • cos 30 =10√3/U
  • U = 10√3/Cos30 =20cm

using 60

we use Sin

  • Sin 60=10√3/U
  • U = 10√3/Sin60 = 20

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