Solve the right triangle shown in the figure. ZB = 23.49, AB = 3.3mm, ZC = 90°

A. BC = 2.2mm, ZA = 66.69, AC = 2.4mm

B. BC = 3.0mm, ZA = 66.6°, AC = 1.3mm

C. BC = 3.0mm, LA = 66.69, AC = 2.2mm

D. BC = 1.3mm, ZA = 66.69, AC = 3.0mm

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

the distance between the school and her home is 3.6km.

12 mins = 0.2 hours = 1/5 hour

54 ÷ 3 = 18km per hour

1/5 of 18 = 3.6km per 12 mins