Use the fact that the length of an arc intercepted by an angle is proportional to the radius to find the arc length given the circle area a = 25π cm2 and θ = π 4 . a) 20π cm b) 5π 4 cm c) 4π 5 cm d) 10π 4 cm

cm

B is correct.

Step-by-step explanation:

Use the fact that the length of an arc intercepted by an angle is proportional to the radius.

Area of circle

Put r and Ф into fact

Hence, The length of arc is cm

these sign is used to tell weather the number is greater or less than the number   <   or >     but this sign means its equal =    

hope this you and

step-by-step explanation: