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Direction: Quadrilateral IJKL is a parallelogram.



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Direction Quadrilateral IJKL Is A Parallelogramhelp class=

Sagot :

Answer:

Step-by-step explanation:

1)  IJ = 11cm ; IL = 4cm LK=?, JK=?

   LK = 11 cm ,   JK = 4cm

2) m∠J = 68°, ∠L=? ∠I=? ∠K=?

   m∠J = m∠L = 68°

   m∠I = m∠K:

  180 = m∠J + m∠I

  m∠I = 180 - m∠J = 180 - 68 = 112°

  m∠K = m∠I = 112°

3) IX = 4.5cm and LX= 6.5 cm

   KX=?, IK=?, JX=?, JL=?

  KX = IX = 4.5 cm

  IK = IX + KX = (4.5) + (4.5) = 9 cm

or IK = 2(IX) = 2(KX) = 2(4.5) = 9cm

 

  JX = LX = 6.5 cm

  JL = LX + JX = 6.5 + 6.5 = 13 cm

or JL = 2(LX) = 2(JX) = 2(6.5) = 13 cm

4) Δ JIL ≅ Δ LKJ

   Δ IJK ≅ Δ KLI