Quadrilateral points W, I,L, D is inscribed in circle O. WI is the diameter of O.
what is the angle of D?

As shown in picture, Quadrilateral points W,I,L,D is inscribed in circle O.

=> D + I = 180 (sum of two opposite angles)

=> D = 180 - I = 180 - 45 = 135 deg

Hope this helps!

:)

34.5 cm

step-by-step explanation:

generally for a circular segment of angle, θ° and radius r

arc length

= (θ/360) x circumference

= (θ/360) x 2πr

in our case, θ = 60°, π=3.142 and r = 33 cm

substitute into above formula

arc length

= (60/360) x 2(3.142)( 33) = 34.5 cm