Question

53. In the adjoining figure, ABCD is a rectangle with
dimensions 28 cm by 16 cm. ADE is a triangle such
that EF 1 AD and EF = 12 cm, calculate the area of
shaded region.​

Answer 1

Step-by-step explanation:

In triangle AED,

Base=16cm

height=12cm

So area =1/2 ×b×h

= 1/2×16×12

=90cm^2

NOW,

area of rectangle=l×b

=28×16

=448 cm^2

So,

Area of shaded region=Are of rectangle - area of triangle

=448-90

=358cm^2