8. Solve:

4×5

(1) Find the perimeter of a square of side 5cm.

(ii) Find the volume of a cube of side 4cm.

(ii) Find the area of a rectangular plot whose length is 35m and breadth is 20m.

(iv) The diameter of a circle is 8cm. Find the radius.

4×5

(1) Find the perimeter of a square of side 5cm.

(ii) Find the volume of a cube of side 4cm.

(ii)

By Luna

Answer:1) Perimeter of square=side×4

= 5×4=20 cm

2)Volume of Cube= s×s×s

4×4×4

=64 sq. cm

3)Area of rectangle= l×b

= 35×20

=700 sq. m

4)Radius=Diameter/2

= r=8/2=4cm

Answer:Q1 answer 4xside = 4×5 20