of the area of the circle. \(A = \frac{135}{360} \times π \times 4^2\) \(A = 18.85 (2 d.p.)\) Calculate the perimeter of the sector. The perimeter is made up of an arc and two straight sides.
Watch this video to learn how to find the area of quadrilaterals. A garden is in the shape of a rectangle measuring \(16.3m\) by \(12.4m\). The gardener marks out the two diagonals and decides to ...