step-by-step explanation :
we know that
the measurement of the outer angle is the semi-difference of the arcs which comprises
in this problem
m< xzy is the outer angle
substitute the values
the measure of angle xoy is equal to
> by central angle
substitute the value
804.75
step-by-step explanation:
let pq = qr = rs = x, and xz = y and zu = z.
if the horizontal lines are parallel, then corresponding segments are in proportion:
substitute:
therefore 3 = y = z.
xu = y + z → xu = 3 + 3 = 6