Answer:
A = 147 cm²
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Geometry
Area of a Circle Formula: A = πr²
Explanation:
Step 1: Define
Identify
r = 7 cm
Step 2: Find Area
- Substitute in variables [Area of a Circle Formula]: A = 3(7 cm)²
- Evaluate exponents: A = 3(49 cm²)
- Multiply: A = 147 cm²