Question

find the length of Arc of radius of 8 cm and Central angle 60​

Answer 1

Answer:

⇒ Here, r=8cm and θ=135

o

⇒ Area of the sector =

360

o

θ

(πr

2

)

Where, θ is angle subtended at a center.

πr

2

is area of a circle.

∴ Area of the sector =

360

o

135

o

×π×(8)

2

∴ Area of the sector =24πcm

2

Answer 2

Answer:

Circumfrence of arc =

$o \div 360 \times 2\pi \: r$

Here O= 60⁰ and r= 8

therefore,

60/360 (2)(22/7)(8)

1/6(2)(22/7)(8)

1/3(22/7)(8)

8.3cm (approx)