Answer:
Explanation:
You haven't given enough information. I will assume that the drawing shows a segment of a circle with height 0.5 m and chord length 1.4 m.
radius of circle = (1.4² + 4·0.5²)/(8·0.5) = 0.74 m
The chord subtends a central angle of θ = 2·arcsin(1.4/(2·0.5)) = 2arcsin(1.4) radians.
area of segment = r²(θ-sinθ)/2 ≅ 0.51 m²