188k views
3 votes
How long is the arc subtended by an angle of 7π/5 radians on a circle of radius 25 cm?

2 Answers

4 votes

Answer:

B) 35π

Explanation:

35π is correct. (7π/5)(25)= 35π

User Alfonso De La Osa
by
7.8k points
4 votes
there are 2pi radians in circle

so

circumference times arcinradians/2pi=areclength
c=2pir
c=2pi25
c=50pi

arc in radians=7pi/5
c times arcrad/2pi=
50pi times (7pi/5)/2pi=
50pi times 7/10=
35pi

it is 35pi cm or aprox 109.95574287564276334619251841478 cm

User Sharita
by
7.5k points

Related questions

1 answer
1 vote
187k views
1 answer
0 votes
21.3k views
1 answer
0 votes
134k views