Page 162 - New Medley 5 Semester 2

6. Square: It is a special type of rectangle whose A B
adjacent sides are equal.

In the given figure, ABCD is a square in which
AB = BC = CD = AD and AC = BD.
D C
Also, A = B = C = D = 90°.

Some More Polygons

5-sided polygon 6-sided polygon 7-sided polygon 8-sided polygon 9-sided polygon
or Pentagon or Hexagon or Heptagon or Octagon or Nonagon

EXERCISE 7.3

A. Observe the figure and fill in the blanks: A

B
1. ABCD is a .
2. The four sides are , , and .
O
3. and are two diagonals whose intersecting
C
point is . D

4. , , and are its four angles.

5. A and C are the vertices.

6. AB and AD are the sides.

B. Classify the following quadrilaterals on the basis of given sides and

angles.
1. 3 cm 2. 4 cm 4 cm 3. 6 cm

3 cm 3 cm 4 cm 5 cm

5 cm 9 cm
3 cm
5 cm

160