Question

Find the area of the shaded region.​

Answer 1

Area of the shaded region = the area of the trapeze - the area of the triangle.

.

`\displaystyle\\A=((32+17)*21)/(2)-(11*9)/(2)\\\\A=(49*21)/(2)-(99)/(2)\\\\A=(1029)/(2)-(99)/(2)\\\\A=(1029-99)/(2)\\\\A=(930)/(2)\\\\\boxed{\bf~A=465~mm^2}`