Answer this and get 50 points.
2 answers:
Answer:
109°
Step-by-step explanation:
Consider an isosceles triangle by joining the end points of tye chord to the centre
Base angles of the traingle:
(180 - 142)/2 = 19
The edge of the triangle makes 90° with the circumference
Angle x = 19 + 90 = 109°
Answer:
As shown in picture, the circle is divided into 2 arcs, one of them is 142 deg.
Then the other one A is 360 - 142 = 218 deg (property of sum of all arcs on circle).
As the property of angle created by a tangent line:
x = (1/2) x arc A = (1/2) x 218 = 109 deg
Hope this helps!
:)
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