Answer:
7π square meter
Explanation:
We will use the formula for the area of a sector of a circle which is given by:
![Area = \frac { \theta } { 360 ^ { \circ } } * \pi r^2](https://img.qammunity.org/2020/formulas/mathematics/middle-school/jka35xg2woqa44qujm6efqs84s1wcy3bjc.png)
Where
is the angle subtended by the sector at the center of the circle. Also, we know that in our case,
.
Substituting the given values in the formula to get:
![A=(60^(\circ))/(360^(\circ))* 42\pi =(1)/(6)* 42 \pi =7 \pi](https://img.qammunity.org/2020/formulas/mathematics/middle-school/cu8gmbgbrltfvoauzdboz6o325v8fb4ylh.png)
Therefore, the correct answer is 7π square meter.