in the diagram below, AB and BC are tangent to O. Which equation could be solved to find y, the measure of ADC
2 answers:
Answer:
A
Step-by-step explanation:
∠ABC is formed by 2 tangents to the circle and is measured as
∠ABC =
(m arc ADC - m arc AC ), that is
(y - 119) = 61 → A
Answer:
A. 
Step-by-step explanation:
We have been given a diagram. We are asked to choose the equation that can be used to solve for y.
We know that measure formed by two intersecting tangents outside a circle is half the difference of corresponding arcs.


Switch sides:

Therefore, option A is the correct choice.
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Answer:
24 cm^2
Step-by-step explanation:
The three sides are equal (SSS: side, side, side) so the triangles are congruent.