ifthe radius of a cylinder is 4cm and height is 10cm, then the total surface area ​

Question

ifthe radius of a cylinder is 4cm and height is 10cm, then the total surface area

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Linh Đan 6 months 2021-08-14T15:07:59+00:00 2 Answers 0 views 0

Answers ( )

    0
    2021-08-14T15:08:59+00:00

    Answer:

    SA = 112π cm²

    General Formulas and Concepts:

    Symbols

    • π (pi) ≈ 3.14

    Pre-Algebra

    Order of Operations: BPEMDAS

    1. Brackets
    2. Parenthesis
    3. Exponents
    4. Multiplication
    5. Division
    6. Addition
    7. Subtraction
    • Left to Right

    Geometry

    Surface Area of a Cylinder Formula: SA = 2πrh + 2πr²

    • r is radius
    • h is height

    Step-by-step explanation:

    Step 1: Define

    Identify

    r = 4 cm

    h = 10 cm

    Step 2: Find Surface Area

    1. Substitute in variables [Surface Area of a Cylinder Formula]:                       SA = 2π(4 cm)(10 cm) + 2π(4 cm)²
    2. Evaluate exponents:                                                                                        SA = 2π(4 cm)(10 cm) + 2π(16 cm²)
    3. Multiply:                                                                                                             SA = 80π cm² + 32π cm²
    4. Add:                                                                                                                   SA = 112π cm²
    0
    2021-08-14T15:09:10+00:00

    Area = Pi4 (exponent 2)
    Area = 50.27

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