A fence that is 50 m long and 1.8 m high is to be spray painted with two coats of paint 3. Calculate the total area that is to be painted. Give your answer in \( \mathrm{m}^{2} \).

To calculate the total area to be painted, you need to consider both sides of the fence because it will be coated with two layers of paint. The area of a rectangle is given by the formula: \[ \text{Area} = \text{length} \times \text{height} \] For the fence: \[ \text{Area} = 50 \, \text{m} \times 1.8 \, \text{m} = 90 \, \text{m}^2 \] Since both sides of the fence will be painted, multiply the area by 2: \[ \text{Total area} = 90 \, \text{m}^2 \times 2 = 180 \, \text{m}^2 \] Now, because it's getting two coats of paint, you need to multiply the total area by 2 again: \[ \text{Total Area for Two Coats} = 180 \, \text{m}^2 \times 2 = 360 \, \text{m}^2 \] So, the total area that is to be painted is \( \mathbf{360 \, m^2} \).