Find the area of this circle. Use 3 for pi
2 answers:
Answer:
A = 147 cm²
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
<u>Geometry</u>
Area of a Circle Formula: A = πr²
Step-by-step explanation:
<u>Step 1: Define</u>
<em>Identify</em>
<em>r</em> = 7 cm
<u>Step 2: Find Area</u>
- Substitute in variables [Area of a Circle Formula]: A = 3(7 cm)²
- Evaluate exponents: A = 3(49 cm²)
- Multiply: A = 147 cm²
Step-by-step explanation:
given pi value= 3
radius=7
we know,
area of a circle(A)= πr²
= 3×7²
=147cm²
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