Question

PLEASE HELP!!
I don't know how to solve this please explain how to solve as well​

Answer 1

arc VU = 80°

Explanation:

the secant- secant angle VPU is half the difference of the measures of the intercepted arcs, that is

∠ 1 =
`(1)/(2)` (VU - ST) , that is

30° =
`(1)/(2)` (VU - 20) ← multiply both sides by 2 to clear the fraction

60° = VU - 20° ( add 20° to both sides )

80° = VU