Can you please explain this question ?

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# Question

# Answer

Adwin

Since the figure is 3/4 of a circle, the remaining portion, **the triangle must be a right-angled triangle** since it is exactly 1/4 of a circle.

(360° ÷ 4 = 90°)

This also means that **AC and AB are both the radius of the circle, as well as the base and height of the triangle**.

Radius = Diameter ÷ 2

Radius = 14 ÷ 2

= 7 cm

Area of triangle ABC is therefore:

1/2 × 7 cm × 7 cm = **24.5 cm ^{2}**

ChiefKiasu

Great answer! I wish all PSLE questions will be as straight forward as this 🙂

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