Apps. and Interpretation for IBDP Maths Ebook 1 | Page 163

(a) Find the size of the angle ˆ ABC .
(b) Hence, write down the size of the angle ˆ DBC.
(c) Find the perimeter of the figure ADC .
3. The following diagram shows triangle ABC , with AB � 6 cm , BC � 16 cm , and
ABC ˆ � 60 .
[3]
[1]
[3]
13
(a) Show that AC � 14 cm .
(b)
The shape in the following diagram is formed by adding a semicircle with
diameter [AC] to the triangle.
[3]
Find the area of this shape.
[3]
153
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