Question

if a circle has a diameter of 8 cm what is the area in terms of pie of a sector of the circle with a 90 degree angle?​

Answer 1

Answer:

Area of the sector = 24πcm²

Step-by-step explanation:

⇒  Here, r=8cm and θ=135°

⇒  Area of the sector =θ/360°​(πr²)

Where, θ is angle subtended at a center.

            πr² is area of a circle.

∴  Area of the sector =360°/135°​×π×(8)²

∴  Area of the sector =24πcm²