The angle subtended by arcs xy and mn on the centre are 72 degree each

1.	The angle subtended by arcs xy and mn on the centre are 72 degree each. the length of the chord?
Answer» Step-by-step explanation: ⇒ Here, r=35cm and θ=72 o [ Given ] ⇒ LENGTH of an ARC = 360 o θ (2πr) Where, θ is angle subtended at a center. 2πr is circumference of a circle. ⇒ Length of an arc = 360 o 72 o ×2× 7 22 ×35 ∴ Length of an arc =44cm ⇒ 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 72 o × 7 22 ×(35) 2 ∴ Area of the sector =770cm please MARK as brain list

The angle subtended by arcs xy and mn on the centre are 72 degree each. the length of the chord?

Answer»

Step-by-step explanation:

⇒ Here, r=35cm and θ=72

[ Given ]

⇒ LENGTH of an ARC =

360

(2πr)

Where, θ is angle subtended at a center.

2πr is circumference of a circle.

⇒ Length of an arc =

360

×2×

×35

∴ Length of an arc =44cm

⇒ Area of the SECTOR =

360

(πr

)

Where, θ is angle subtended at a center.

πr

is area of a circle.

⇒ Area of the sector =

360

×(35)

∴ Area of the sector =770cm

please MARK as brain list