ishanisogi20
ishanisogi20 ishanisogi20
  • 14-02-2021
  • Mathematics
contestada

find the lengths of the lettered angles and sides. No approximation for square root is allowed

find the lengths of the lettered angles and sides No approximation for square root is allowed class=

Respuesta :

mhanifa
mhanifa mhanifa
  • 14-02-2021

Answer:

  • x = 30°, y = 45°
  • w = 14√2, v = 7√2

Step-by-step explanation:

ΔABC

  • BC/AB = sin x
  • 12/24 = sin x
  • 1/2 = sin x
  • x = 30°

ΔDBC

  • DC = BC - given
  • ∠C = 90° - given
  • ΔDBC is isosceles right triangle

∠BDC ≅ ∠DBC ⇒ y = 45°

-------------------------------------------

ΔMPN is right isosceles triangle ⇒ MN = PN√2 = 14√2

  • w = 14√2

ΔMKP is right isosceles triangle ⇒ MK = KP

  • v = 1/2MN = 1/2(14√2) = 7√2

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