Question

In the diagram, triangle ABC is inscribed in a circle and CD is tangent to the circle. If angle BCD is 40, how many degrees are there in the angle 4?A. 20B.30C. 40D.50

Answer 1

Given the diagram below;

Given that

`\angle BCD=40^0`

Then using alternate segment theorem we have that

Thus, from the above illustration, we can conclude that

`\angle A=40^0`

Hence, angle A is 40°