Question

find the area of shaded portion.

Answer 1

Answer:

since  ABCD is a rectangle, opposite sides are equal and all angles are 90*

so, the Required area = area of rectangle - area of 2 x triangles

ar of rectangle = l x b

                         = 18 x 10 180 cm ^2

ar of triangle = 1/2 x b x h

                      = 30 cm ^2

ar of another triangle = 1/2 x b x h

                        = 40 cm^2

area of the two triangles = 30 +40=70 cm^2

R.A =180 - 70

       =110 cm^2

Answer 2

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