Question

Calculate the area of a quadrilateral ABCD shown in the figure given below
Ab= 12 BC=8 and dc= 8 and ad is not given.

Answer 1

Answer:

128squnits

Step-by-step explanation:

const: draw a line AE perpendicular to the side DC

now as

BC _|_DC

AE_|_DC

=>BC||AE

as both are perpendicular to ae line.

now as AE||CE, BC||AE

SO, ABCD is a parallelogram.

so area of ||gm= L×B

=>{ 12×8} cm= 96cm

In triangle AED

AE_|_DE

so it is rt angle triangle

wkt ar of triangle = 1/2 ×b ×s

=1|/2 ×8×8= 32 sqcm.

total area =

32sqcm + 96 sqcm= 128sqcm