Figure 1 below shows the sector $AOB\,$ of a circle.

Figure for question 5

A student's attempt to find the area of the sector $AOB\,$ is shown below.

Area $=12r2θ=12×62×40=720\displaystyle = \frac{1}{2}r^2\theta = \frac{1}{2} \times 6^2 \times 40 = 720$ cm $^2$

Identify the mistake made by the student.

Write out a correct solution.

Figure 1 below shows the sector $AOB\,$ of a circle.

Figure for question 5

A student's attempt to find the area of the sector $AOB\,$ is shown below.

Area $=12r2θ=12×62×40=720\displaystyle = \frac{1}{2}r^2\theta = \frac{1}{2} \times 6^2 \times 40 = 720$ cm $^2$

Identify the mistake made by the student.

Write out a correct solution.

1 Pure Mathematics

1 Pure Mathematics Questions