Answer:
a) Arc length (l) = 36 inches
b)
The nearest angle in degrees θ = 103.18°
Explanation:
Step(i):-
An arc has a central angle of 1.8 radians and a radius of 20 inches.
Given arc has a central angle of 1.8 radians and
radius of circle = 20 inches
Given arc has a central angle (θ ) = 1.8 radians
Arc length (l) = r θ
l = 20 × 1.8 radians
l = 36
The length of arc = 36 inches
b)
we will convert radians to degree
1.8 × 180° / π = 324° / π ≅ 103.18°
The nearest angle in degrees θ = 103.18°