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
Let's find the surface area of the spherical model. Step 1: Write the formula for the surface area of a sphere. Surface Area (A) = 4πr² Step 2: Substitute the given radius (r = 21 cm) into the formula. A = 4 × π × (21 cm)² Step 3: Calculate the square of the radius and then multiply. A = 4 × π × 441 cm² A = 1764π cm² Step 4: Calculate the numerical value (using π ≈ 3.14159). A ≈ 1764 × 3.14159 cm² A ≈ 5541.76 cm² The surface area of the model is approximately 5541.76 cm². Send me the next one 📸