Consider the following figure.

Question

Consider the following figure.

 

 

(a) Find the length of the arc of the colored sector in the figure when r = 14 cm. (Round your answer to two decimal places.)
= ?cm

(b) Find the area A of the sector when r = 14 cm. (Round your answer to two decimal places.)
A = ?cm2

Answer 1

s = rθ where s = arc length, r = radius, and θ = angle in radians. 

 

θ = 45π/180 = π/4.

 

A = πr² x (θ/360°)