Respuesta :

Answer:

  • Q3. x = 14, y = 7
  • Q4. x = 29, y = 3

Step-by-step explanation:

Question 3

Angles

  • x + 45° = 59° (exterior angle)
  • x = 14°

Sides

The triangle is right isosceles (45°)

The legs have equal length

  • 10 + 2y + 1 = 4y - 3
  • 4y - 2y = 11 + 3
  • 2y = 14
  • y = 7

Question 4

The figure is a square

Sides

  • 5y + 3y = 24
  • 8y = 24
  • y = 3

Angles

The angle between sides 24 and 24 is the right angle

  • x + (9y + 5) + x = 90°
  • 2x + 9(3) + 5° = 90°
  • 2x = 90° - 32°
  • 2x = 58°
  • x = 29°