Question

find the area of the quadrillateral ABCD
(answer should come 66cm²)​

Answer 1

Answer:

66 sq cm

Step-by-step explanation:

Its simple! {If given that height of both triangles are same}

Divide the quadrilateral in 2 triangles as shown to find the area.

Area of first triangle will be 1/2 x base x height

=1/2 x 11 x 6=33

Similarly, area of 2nd triangle will also be 33

Total area=33+33=66 sq cm

ALTERNATIVE METHOD{If not given that height of both triangles are same}

Let height of first triangle be h1 and height of second triangle be h2

Area of first triangle= 11/2 x h1

Area of second triangle= 11/2 x h2

Total Area= [11/2 x h1] + [11/2 x h2]

                 = 11/2 [h1+h2]

                 = 11/2 x 12

                  11 x 6 = 66 sq cm