Mathematics

Problem

In a circle of radius

7\,\text{cm}

, a chord subtends a central angle of

60^{\circ}

. Find the area of the smaller segment cut off by the chord. (Take

\pi = \dfrac{22}{7}

; give your answer to one decimal place.) a)

25.7\,\text{cm}^2

46.9\,\text{cm}^2

4.5\,\text{cm}^2

21.2\,\text{cm}^2