We get the length of AB as 7.37 pi units
We are given that:
AB || CD
AD = 36 cm
AD is the diameter of the circle.
So, we get that
1 / 2 AD = Radius (r)
r = 36 / 2 cm = 18 cm
Now, we are also given that:
∠ BAD = 50°
Since AD is a diameter, we get that:
ABD will form a right triangle with ∠ ABD = 90°
∠ ADB = 40° ( Angle sum property)
AB will be:
sin (40) = AB / 36
AB = 36 * sin (40) = 23.140353948732
AB ≈ 7.37 pi units
Therefore, we get the length of AB as 7.37 pi units
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