Tak9 Duagnm NOT accurately drawn 10} A B C and D are points on a circle. PA is an angle PAD = 39° tangent to the circle. Angle BCD = 103°. Calculate the size of the angle ADB. ABD and E are points on circle EDC where A is on the circumference. Line AE intersects line BC at point H. Given that BC = 18 cm, find the length of AB.
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Since angle PAD is tangent to the circle, angle PAB is half of angle PAD. So, angle PAB = 390/2 = 195 degrees. Now, we know that angle BCD = 103 degrees. Since A, B, C, and D are points on the circle, angle ADC is also 103 degrees (opposite angles in a cyclic Show more…
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