Analysis and Approaches for IBDP Maths Ebook 1 | Page 117

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(a) Find ˆ BAC .
(b) Find the exact perimeter of the figure ADC .
[4]
[3]
3. The following diagram shows triangle ABC , with AB � 6 cm , BC � 16 cm , and
ABC ˆ �
� . 3
(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]
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Find the exact area of this shape.
[3]
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