N Jane and Tom are considering redesigning their front garden. They plan to plant several trees in the garden and to cover the remainder of the garden with grass. The illustration below provides a view from above of their front garden. Each hole shown below, has a radius. Use the information above to answer the questions that follow. 2.1.1 Explain the meaning of the term radius. (2) 2.1.2 Determine the radius (in mm) of ONE of the holes that has been dug out for the trees if the area of the hole is 0,79 m². The following formula may be used: Area of circle = 7 X radius Xradius, where a = 3,142 (4 ) 2.1.3 The perimeter of the garden is 24 m. The width of the garden is 4m. Calculate the length of the garden in metres. The following formula may be used: Perimeter = 2 x length + 2 x width