Question

Find the length of an arc of a circle of radius 10 cm which subtends an angle of 45° at the centre

Answer 1

Step-by-step explanation:

Given: circle with

r

=

10

c

m

and central angle

θ

=

45

∘

Arc length using degrees

=

θ

360

∘

2

π

r

Arc length

=

45

∘

360

∘

2

π

(

10

)

=

1

8

⋅

20

π

=

5

2

π

cm

≈

7.9

cm

plz mark brainleist. . follow for every answer instatntly

Answer 2

Answer:

The length of an arc of a circle of radius 10 cm which subtends an angle of 45° at the centre is 7.86 cm.

Step-by-step explanation:

If s = length of arc .

r = radius

a = angle of arc.

s = r.a

or , s = 10 * ($\pi$/4).

or , s = 7.86 cm .

#SPJ2