Answer:
first we fisson in three regtangles. and we gain 6 cm to 3cm regtangles. they have the same width and length.
and we find their area. we multiplay 6cm and 3cm. the result is 18 cm square. and they have the same area.
lastly we find the value of the picture by find the sum of three regtangels.18cm square+18cm square+18cm square=
54cm square. fainally the answer is 54cm square.
