Question
In triangle ABC, the point D lies on AB and the point E lies on AC.
DE is parallel to BC.
AD = 6 cm, DB = 4 cm and DE = 9 cm.
[6 marks]
DE is parallel to BC.
AD = 6 cm, DB = 4 cm and DE = 9 cm.
(a)Explain why triangle ADE is similar to triangle ABC.
(b)Work out the length of BC.
(c)The area of triangle ADE is 27 cm². Work out the area of triangle ABC.
(d)Hence work out the area of the trapezium DBCE.
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