Question

in the following figures, find the area of the shaded region.
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Answer 1

Area of green shaded region=

Area of rectangle - ( Area of triangle DEF + Are of triangle BEC)

Area of rectangle = L × B

= 18 × 10

= 180 cm2

Area of triangle DEF= 1/2 × base × height

= 1/2 × 10×6

= 30 cm2

Area of triangle BEC = 1/2 × base × height

= 1/2× 8×10

= 40 cm2

Area of green shaded region=

Area of rectangle - ( Area of triangle DEF + Are of triangle BEC)

= 180 cm2-(30 cm2+40 cm2)

= 180 - 70

= 110 cm2