Answer:B
Step-by-step explanation:
Φ=90
Radius=r=7
area of sector=12.25π
Area of triangle=0.5 x r x r x sinΦ
Area of triangle=0.5 x 7 x 7 x sin90
Area of triangle=0.5 x 7 x 7 x 1
Area of triangle=24.5
Area of shaded portion=area of sector - area of triangle
Area of shaded portion=12.25π - 24.5
