Area of circle with radius 5
Step-by-step solution with detailed explanations
Final Answer
25π ≈ 78.54
Step-by-Step Solution
1
Formula
A = πr²
2
Substitute
A = π(5)²
3
Calculate
A = 25π ≈ 78.54
Expert Insights
Why πr²?: Area scales with square of radius
Units: Always square units for area
Pro Tip: Keep π in exact answer, approximate for decimals