Respuesta :

mhanifa

Answer:

  • 11) 3
  • 13) 27°

Step-by-step explanation:

11. ..................................................

The triangle is isosceles

Equal sides have length of

  • 5x - 11 = 3x - 3
  • 5x - 2x = 11 - 3
  • 3x = 9
  • x = 3

13. ..................................................

The triangle is isosceles

x is one of the angles of a right triangle

The other angle of this triangle is same as corresponding angle = 63°

  • x = 90° - 63°
  • x = 27°
ricchad

Answer:

11.   x = 4

13.  x = 27°

Step-by-step explanation:

11.  isosceles triangle with two equal side lengths

     5x - 11 = 3x - 3

     5x - 3x = 11 - 3

     2x = 8

      x = 8 / 2

      x = 4

13. isosceles triangle mirrored right triangle

    with angles 63°, 90° and x , find x

    90 + 63 + x

    90 - 63 = x

     x = 27°