Page 55 - Mathematics_Form_Two

Similarity

7. Name two similar triangles in the 10. In the following figure:
following figure.

FOR ONLINE READING ONLY

(a) List all pairs of congruent
angles, giving reasons.
(b) Name pairs of similar triangles,
giving a similarity theorem to Mathematics for Secondary Schools
justify your answer.
8. Use the following figure to prove that: (c) Find the values of x and y.

11. In the following figure,
(a) Show that △EFJ~△GFI

(b) If HÊI:GÎF=1:3, find <JÊF

(a)  ADC ~ BEC

(b) AF = EA
BF DB
12. Study the following figure and answer
9. To determine the value of x in the questions that follow.
the figure below, Dora writes the
12 x
equation = . Is this equation
8 10
correct? Explain. If it is incorrect,
write the correct equation and find
the value of x.

(a) Name the triangle which is
similar to AOB∆ and give
reasons
(b) If OA 10cm, = OB 8cm, =

OK = 6cm, AB 7cm, =
calculate OH and HK.

49
Student's Book Form Two

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MATHEMATIC F2 v5.indd 49