Put on your thinking caps!

1. A wire is used to form a rectangle,12cm long and 4cm wide. The same length of wire is used to form a square.
a)Find the length of the wire used.
b)Find the area of the square formed by the wire.

Solution:

Perimeter of the rectangle = 12 + 4 + 12 + 4 = 32

a) Ans: 32 cm

32 divide 4 = 8

Each side of the square is 8cm.

Are of the square = 8 X 8 = 64

b) Ans: 64 centimetres square

2. A plane departed Singapore at 21 50 on Friday. It landed in Country P at 02 10.
(a) On which day did it reach Country P?
(b) How long was the flight?

Solution:

(a) Saturday

b) ans: 4 h 20 min