Answer:
Area of the sector = 78.54 square meters
Explanation:
Radius of the given circle = 10 meters
Sector bounded by the arc having measure = 90°
Angle subtended by the arc at the center = 90°
Area of the sector =

Here angle θ is the angle at the center subtended by the arc.
If angle θ = 90°
Therefore, area of the sector =

= 25π
= 78.54 square meters