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a.    Calculate the area of the polygon if a = 3cm and s = 2cm

b.    Calculate a if P = 24m; A = 60m2; s = 3m

c.    Convert 3,5 metres to centimetres.

d.    Express 650 millilitres in litres.

e.    A trailer is 180 cm in length 1,2 m in width and 80 cm in height. What is the perimeter of the trailer?
in Grade 12 Maths Literacy by Silver Status (28,769 points) | 12 views

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a.    A = aP/2

P = sn = 2 x 8 = 16cm

Therefore:  A = (3 x 16)/2

A = 24cm2

b.    A = aP/2

60 = (a x 24)/2

2 x 60 = a x 24

120/24 = a

Therefore: a = 5cm

c.    3,5 metres = 3,5 x 100 = 350 centimetres.

d.    650 millilitres = 650/1000 = 0.65 litres.

e.   Perimeter of the trailer = 2 (1,80 + 1.2) = 6 m
by Silver Status (28,769 points)

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