B hyatranhestam siuekhere a deurnunedia eru h buhoak as 330

-B hyatranhes.tam siuekhere a, deurnunedia, ,.eru h bu._.hoa.k as 33.0

Solution

The approach is pretty straightforward. According to the book, the shape has been slit into two sinple geometrical shapes : one is a rectangle of dimension b and y; the other being a trapezium whose sides that are parallel have lengths y and y-G and the perpendicular distance between them being B

Therefore, area = area of rectangle + area of trapezium

Area of rectangle=y*b

Area of trapezium=0.5*(y + (y-G))*B=0.5*(y+y-G)*B

Therefore, total area of section is y*b + 0.5*(y+y-G)*B