Question

if the area of the sector is 30 cm2 and the radius is 15 cm, then the length of the arc of the

sector is ______ cm.

a) 2 b) 4 c) 6 d) can’t say​

Answer 1

Answer:

4cm

Step-by-step explanation:

Area of sector of circle =30 cm

2

radius of circle =15 cm

Area of sector =

360

θ

×πr

2

360

θ

=

πr

2

A

=

π×15×15

30

=

15π

2

now length of arc =2πr=

360

θ

=2π×15×

15

2

Length of arc =4 cm

Answer 2

Answer:

b) 4

Step-by-step explanation:

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