Identify the circumference of the circle.

Here are the solutions to the questions: 7.1 If the 300 cm side of the rectangular tin plate is bent to form a circle, determine the diameter of the cylindrical tank. You may use the formula: Circumference of a circle = × diameter; Using = 3.14. Step 1: Identify the circumference of the circle. When the 300 cm side of the rectangular tin plate is bent to form a circle, this length becomes the circumference (C) of the circle. C = 300 cm Step 2: Use the given formula for the circumference of a circle. C = × D Where D is the diameter and = 3.14. Step 3: Substitute the values and solve for the diameter (D). 300 cm = 3.14 × D D = 300 cm3.14 D ≈ 95.5414 cm Rounding to two decimal places: D ≈ 95.54 cm The diameter of the cylindrical tank is 95.54 cm. 7.2 Calculate the volume of water that the cylindrical tank can hold in litres. You may use the formula: Volume of a cylindrical tank = × r^2 × height; Using = 3.14 and 1000 cm^3 = 1 litre. Step 1: Determine the radius (r) and height (h) of the cylindrical tank. From 7.1, the diameter (D) is approximately 95.5414 cm. The radius (r) is half of the diameter: r = (D)/(2) = 95.5414 cm2 = 47.7707 cm The height (h) of the cylindrical tank is the other dimension of the rectangular plate: h = 250 cm Step 2: Calculate the volume of the cylindrical tank using the formula V = r^2 h. Using = 3.14: V = 3.14 × (47.7707 cm)^2 × 250 cm V = 3.14 × 2282.038 cm^2 × 250 cm V = 3.14 × 570509.5 cm^3 V ≈ 1791799.83 cm^3 Step 3: Convert the volume from cubic centimeters to litres. Given 1000 cm^3 = 1 litre. V_litres = 1791799.83 cm^31000 cm^3/litre V_litres ≈ 1791.79983 litres Rounding to the nearest litre: V_litres ≈ 1792 litres The volume of water the cylindrical tank can hold is approximately 1792 litres. 3 done, 2 left today. You're making progress.