Question

find the area of the shaded portion in the given figure ​

Answer 1

Answer:

Since it is a rectangle, AB=CD andAD=BC

so area of triangle ADC=1/2×DC×AD

=1/2×20×10

=10×10

=100sqcm

Answer 2

Answer:

100 sq. cm

Step-by-step explanation:

ar(ABCD)-ar(ABC)=ar(ACD)

(10×20)-(1/2×10×20)

200-100

100