State whether the statements are True or False.

All congruent triangles are equal in area.

State whether the statements are True or False.

In Fig. 9.27,

A. area of (i) is the same as the area of (ii).

B. Perimeter of (ii) is the same as (i).

C. If (ii) is divided into squares of unit length, then its area is 13unit squares.

D. Perimeter of (ii) is 18 units.

State whether the statements are True or False.

If perimeter of two parallelograms are equal, then their areas are also equal.

State whether the statements are True or False.

All parallelograms having equal areas have same perimeters.

State whether the statements are True or False.

Observe all the four triangles FAB, EAB, DAB and CAB as shown in Fig. 9.28:

All triangles have the same base and the same altitude.