Question

Find the areas of the shaded region
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Answer 1

Answer:

area of rectangle-area of triangle

l×b-1/2×l×b

25×40-1/2×20×15

1000-150

1850

Answer 2

Answer:

area of shaded region = area of box - area of ∆

area of box = lb = 40×25 = 1000cm²

area of triangle = ½BH = ½×15×20 = 150cm²

therefore, the desired area = 1000-150

= 850cm²

hope it helped :)