1. The perimter of a square is 36cm. Find its area.
2. Find the number of 15-centimetre square tiles required to cover a rectangular floor 5.4 m long and 4.05 m wide.
3. Find the tota area of cardboard used in akin a closed match box, complete with sliding portion, 4 cm long , 2.5 cm wide and 1.2 cm deep. (Ignore the thickness of cardboard).
4. (Problem Solving)
Kumar walks around a rectangular field the length of which is twice its width. He then walks round another rectangular field half as wide but having the same perimeter as the first field. If the difference in area between the two fields is 432 m square, find the length of the second field.
Do this for me pls. Juz tell me the answers will do.