Find the area of triangle ABC shown below.

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Worked solution

1. Find the length of the base AC

$\text{Base } AC = 16 + 3 = 19\text{ cm}$

2. Calculate the area of triangle ABC

$\text{Area} = \frac{1}{2} \times \text{base} \times \text{height} = \frac{1}{2} \times 19 \times 12 = 114\text{ cm}^2$

Answer

$114\text{ cm}^2$ (option 2)

AI analysis — may contain mistakes.

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