Question

10 cm
11. In the adjoining figure ABCD is a
rectangle. Find the area of the shaded
region
12 cm
7 cm
18 cm

Answer 1

Answer:

Ans) let AE be 10 cm DC 18 cm AD 12cm FC 7 cm FB 5cm

area of triangle ADE 60 cm

area of triangle EFB 20 cm

area of triangle DCF 63 cm  

total area of shaded region=total area of the rectangle - the sum of these triangles

i.e. 216-143

=73

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