Question

A chord of a circle of radius 5cm subtends an angle of 45 degree at the centre​

Answer 1

Answer:

60

Step-by-step explanation:

Given

⇒ Length of an arc =

3

5π

cm

⇒ r=5cm

⇒ Length of an arc =

360

o

θ

(2πr)

Where, θ is angle subtended at a center.

2πr is circumference of a circle.

∴

3

5π

=

360

o

θ

×2π×5

∴ θ=

6

360

o

∴ θ=60

o