Answer:
The answer is option 1.
Explanation:
It is given that the area of sector is, A = θ/360 × π × r² where r is the radius of circle. Using the formula, you are able to find the shaded sector :
θ = 90°
r = 6 yd
A = 90/360 × π × 6²
= 1/4 × π × 36
= 9π
= 28.3 yd² (near. tenth)