1
a. 18 square units b. 19 square units c. 10 square units

 

2
a. 544 m2 b. 195 000 mm2 c. 22.75 m2
d. 20.25 cm2 e. 90 cm2 f. 35 cm2

 

3
a. The area of the banknote is 93.75 cm2
b. The area of the tennis court is 160 m2
c. The area of the grass lawn is 33.75 m2
d. The length of the kitchen is 3 m.
e. The area of the postage stamp is 3.75 cm2
f. The rugby field is 85 metres wide.

4. a. Area = 176 cm2

b. Area = 222 m 2

c. Area = 96 cm2

d. Area = 164 cm2