Question

Find the area of this circle. Use 3 for pi

Answer 1

Explanation:

given pi value= 3

radius=7

we know,

area of a circle(A)= πr²

= 3×7²

=147cm²

Answer 2

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

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