Question

Plz help me With this question plz !!!!

Answer 1

arc WVY = 250°

Explanation:

The tangent- tangent angle YXW is half the difference of the intercepted arcs

`(1)/(2)` ( WVY - WY) = 70

`(1)/(2)` (10a - (4a + 10) ) = 70 ( multiply both sides by 2 )

10a - 4a - 10 = 140

6a - 10 = 140 ( add 10 to both sides )

6a = 150 ( divide both sides by 6 )

a = 25

Then

arc WVY = 10x = 10 × 25 = 250°