Respuesta :

learner7212

Step-by-step explanation:

given pi value= 3

radius=7

we know,

area of a circle(A)= πr²

= 3×7²

=147cm²

Space

Answer:

A = 147 cm²

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

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

Geometry

Area of a Circle Formula: A = πr²

  • r is radius

Step-by-step explanation:

Step 1: Define

Identify

r = 7 cm

Step 2: Find Area

  1. Substitute in variables [Area of a Circle Formula]:                                         A = 3(7 cm)²
  2. Evaluate exponents:                                                                                         A = 3(49 cm²)
  3. Multiply:                                                                                                             A = 147 cm²

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