The figure is made up of 8 identical rectangles. Find the total area of the shaded figure.
A 300 sq. cm
B 500 sq. cm
C 150 sq. cm
D 200 sq. cm
Which of the following statements is incorrect?
A Each angle of a rectangle is a right angle.
B All the sides of a rhombus are of equal length.
C All the sides of a parallelogram are of equal length.
D The diagonals of a square are perpendicular to one another.