25). Measure of angle 2 will be 48°.
26). Value of x = 6.125
27). Value of x = 56°
Properties of a kite,
- Two pairs of the adjacent sides of kite are equal.
- Diagonals of a kite intersect each other at 90°.
- One pair of opposite angles are equal.
25). Given in the picture,
- DEFG is a kite having diagonals EG and DF perpendicular.
- m∠1 = 42°
   Apply triangle sum theorem in ΔEHF,
   m∠EHF + m∠2 + m∠1 = 180°
   90° + m∠2 + 42° = 180°  [Since, m∠EHF = 90°]
   m∠2 = 180° - 132°
   m∠2 = 48°
      Therefore, measure of angle 2 will be 48°.
26). Given in the question,
- Â Â DE = 4x - 2 and DG = 22.5
  By the property of a kite,
  DE = DG
  (4x - 2) = 22.5
  4x = 24.5
  x = 6.125
      Therefore, value of x will be 6.125
27). Given in the question,
-  Kite ABCD with m∠B = 140°, m∠C = 82°, m∠D = x°
  Sum of the interior angles of a kite = 360°
  Therefore, m∠A + m∠B + m∠C + m∠D = 360°
  By the property of a kite,
  m∠A = m∠C = 82°
  m∠A + m∠B + m∠A + m∠D = 360°
  2(m∠A) + m∠B + m∠D = 360°
  2(82°) + 140° + x° = 360°
   x = 360° - 304°
   x = 56°
     Therefore, value of 'x' will be 56°.
Learn more about the properties of a kite here,
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