This mathematics problem involves applying core mathematical principles and formulas. Below you will find a complete step-by-step solution with detailed explanations for each step, helping you understand not just the answer but the method behind it.
ScanSolve AI Answer
Step 1: Calculate the total surface area of the four walls of the room. The formula for the area of the four walls of a rectangular room is 2(L × H) + 2(W × H), where L is length, W is width, and H is height. Given: L = 5 m, W = 3 m, H = 2.5 m. Area of walls = 2(5 m × 2.5 m) + 2(3 m × 2.5 m) Area of walls = 2(12.5 m^2) + 2(7.5 m^2) Area of walls = 25 m^2 + 15 m^2 Area of walls = 40 m^2 Step 2: Calculate the area of the door. The formula for the area of a rectangle is length × width. Given: door dimensions are 1.5 m by 0.9 m. Area of door = 1.5 m × 0.9 m Area of door = 1.35 m^2 Step 3: Calculate the total surface area that will be painted. This is the area of the walls minus the area of the door. Painted area = Area of walls - Area of door Painted area = 40 m^2 - 1.35 m^2 Painted area = 38.65 m^2 The total surface area that will be painted is 38.65 m^2. --- For question 8, the problem statement is incomplete as it describes the object and its dimensions but does not ask a specific question (e.g., to calculate its volume, surface area, or mass). Send me the next one 📸