Question

Find the value of x
a) 57
b) 60
c) 69
d) 63​

Answer 1

b

Explanation:

The tangent- secant angle 55° is equal to half the difference of its intercepted arcs, that is

`(1)/(2)` (170 - x) = 55 ( multiply both sides by 2 to clear the fraction )

170 - x = 110 ( subtract 170 from both sides )

- x = - 60 ( multiply both sides by - 1 )

x = 60 → b