Find the circumference of the circle:
Circumference = PI x diameter
Circumference = 3.14 x 26 = 81.64 cm
A full circle is 360 degrees. Arc AB is given as 67 degrees.
Multiply the circumference by the fraction of the arc from a complete circle:
Arc AB = 81.64 x (67/360)
Arc AB = 15.2 cm ( rounded to the nearest tenth)