78.4k views
2 votes
See attached for the question

See attached for the question-example-1
User Crashtor
by
3.3k points

2 Answers

4 votes

Check the picture below.

See attached for the question-example-1
User Orun
by
3.3k points
4 votes

Answer:

∠ U = 12°

Explanation:

the inscribed angle RST is half the measure of its intercepted arc RT , then

arc RT = 2 × ∠ RST = 2 × 30° = 60°

the secant- tangent angle U is equal to half the difference of its intercepted arcs, that is

∠ U =
(1)/(2) ( RS - RT ) =
(1)/(2) × (84 - 60)° =
(1)/(2) × 24° = 12°

User Diadem
by
3.3k points