Chairs made of tyres 15.5 cm 0 O Diameter of the tyre = 58 cm Width of the tyre e the information above to answer the questions that follow. = 15,5 cm (2) aira (3) .1 Calculate the total number of tyres needed to produce 20 chairs. .1.2 Calculate the total height of a chair. 3.1.3 Determine the radius of the tyre. 3.1.4 Calculate the area of the seat of the tyre made chair. You may use the formula: (31 (31 لیا لیا Area = x² where, r-radius