Look at the trapezoid shown below. Which transformation carries the trapezoid onto itself?

A a reflection across the line x = -1

B a reflection across the line y = 0

С a rotation of 180° about the point (-1,0)

D a rotation of 180° about the origin

step-by-step explanation:

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