Easy -1.8 This is a direct application of the sector area formula A = ½r²θ with all values given. It requires only substitution into a standard formula (½ × 4² × 0.8 = 6.4) with no problem-solving, and being multiple choice with 1 mark makes it even more routine than typical recall questions.
The diagram below shows a sector of a circle.
\includegraphics{figure_3}
The radius of the circle is 4cm and \(\theta = 0.8\) radians.
Find the area of the sector.
Circle your answer.
[1 mark]
$$1.28\text{cm}^2 \quad 3.2\text{cm}^2 \quad 6.4\text{cm}^2 \quad 12.8\text{cm}^2$$
The diagram below shows a sector of a circle.
\includegraphics{figure_3}
The radius of the circle is 4cm and $\theta = 0.8$ radians.
Find the area of the sector.
Circle your answer.
[1 mark]
$$1.28\text{cm}^2 \quad 3.2\text{cm}^2 \quad 6.4\text{cm}^2 \quad 12.8\text{cm}^2$$
\hfill \mbox{\textit{AQA Paper 1 2019 Q3 [1]}}