In Fig. 9.27 if 1 box is of unit length
Perimeter of (ii) is 18 units.

In Fig. 9.27 Perimeter of (ii) is the same as (i).

In Fig. 9.27 area of (i) is the same as the area of (ii).

Units of Length

In Fig. 9.27 If (ii) is divided into squares of unit length, then its area is 13 unit squares.

In a new system of units, unit of mass is 10 kg, unit of length is 100 m, unit of time is 1 minutes. The magnitude of 1 N force in new system of units will be

The area of a circle inscribed in an equilateral triangle is 36pi sq units. The length of altitude of triangle is (A) 12 units (B) 14 units (C ) 16 units (D) 18 units

In Fig. 9.26. perimeter of (ii) is greater than that of (i), but its area is smaller than that of (i).

If the unit of force is 1 kN, unit of length 1 km and unit of time is 100s, what will be the unit of mass?

On the scale of 1 unit length = 10 crore, the bar of length 6 units will represent ________ crore and of ______ units will represent 75 crore .