Question

EXERCISE 9B
1. Find the area of a rectangle 12 cm by 6 cm.
2. Find the area of a rectangle 16 m by 14 m.
3. Find the area of a table 3 m by 2 m.
4. 1 metre = 100 centimetres. Find the number of square
centimetres in a square metre.
5. A rectangular field is 300 m long and 200 m wide. Find
ts area in hectares.
B. Find the perimeter of a room 7 m long and 5 m wide.
7. A room is 8 m long, 6 m wide and 3 m high. Find the
rea of the ceiling, (ii) the perimeter, (iii
) the area of the walls.
8. A picture is 90 cm long and 56 cm high. Find its area
square centimetres.
9. Find the area of a platform 9 m long and 8 m wide.
10. Find the number of hectares in a rectangular field 1300 m
g and 900 m wide.
1. Find the number of hectares in a square kilometre.​

Answer 1

Answer:

see below

Step-by-step explanation:

Area of the rectangle = length × breadth

= 10×12=120 cm  

2